bluuebunny/crossref_metadata_2025 huggingface dataset:
Über α‐Halogenäther, XVIII. Neue Synthesen für Methylbenzylsulfide, aromatische Aldehyde und Arylthiolcarbonsäureester mittels chlorierter Dimethylsulfide
Authors: Gross Hans , Matthey Günter
Published: June 2007

Aromatische Kohlenwasserstoffe, kondensierte Aromaten, Phenole, Phenoläther und Heteroaromaten wurden unter Bedingungen der Friedel‐Crafts‐Synthese mit chlorierten Dimethylsulfiden umgesetzt. Monochlordimethylsulfid gab Methylbenzylsulfide, mit Dichlordimethylsulfid wurden die entsprechenden Aldehyde und mit Methyl‐trichlormethyl‐sulfid die Thiolester der aromatischen Carbonsäuren erhalten.
Photo‐Sulfenchlorierung, III. Photoreaktion gesättigter Kohlenwasserstoffe mit Dichlordisulfan
Authors: Müller Eugen , Schmidt Eckart W.
Published: June 2007

Alkane und Cycloalkane werden mit Dichlordisulfan unter Bestrahlung mit Licht der Wellenlänge 250–400 nm zu Alkyl‐ bzw. Cycloalkyl‐chlor‐disulfanen (RSSCI) umgesetzt. Die Verbindungen werden wegen ihrer groß en Zersetzlichkeit meist in Form von Derivaten isoliert.
Synthesen stickstoffhaltiger Heterocyclen, XXXI. Über 1.2.4‐Triazine, V. Desaminierung von 4‐Amino‐1.2.4‐triazinen
Authors: Dornow Alfred , Pietsch Hanns , Marx Paul
Published: June 2007

4‐Amino‐1.2.4‐triazine werden durch salpetrige Säure desaminiert. Diese Reaktion wird zur Strukturaufklärung von Triazolo‐1.2.4‐triazinen benutzt und gibt Aufschluß über die Bildungsweise einiger Tetrazolo‐1.2.4‐triazine.
Über Reaktionen mit Aluminiumalkylen, I. Zur Reaktion von Triäthylaluminium und Äthyl‐aluminium‐sesqui‐chlorid mit Nitrilen, Isocyanaten und Isothiocyanaten
Authors: Reinheckel Heinz , Jahnke Dietrich
Published: June 2007

Triäthylaluminium reagiert mit Nitrilen im Molverhältnis 2:1 unter Bildung von Äthylketonen, wobei eine sechsgliedrige Zwischenverbindung angenommen wird. Äthyl‐aluminium‐sesquichlorid und Nitrile reagieren nicht miteinander. Isocyanate und Isothiocyanate werden sowohl durch Triäthylaluminium als auch durch Äthyl‐aluminium‐sesquichlorid zu N‐ substituierten Propionsäureamiden bzw. Thiopropionsäureamiden umgesetzt. Die Reaktionsmechanismen werden diskutiert.
Über die Herstellung des 4.5.6.7‐Tetrachlor‐10.10‐dihydroxy‐4.7‐methylen‐4.7.8.9‐tetrahydro‐ phthalans
Authors: Feichtinger Hans , Linden Hans‐Werner
Published: June 2007

Durch Behandlung von 4.5.6.7‐Tetrachlor‐10.10‐dihydroxy‐bzw. 4.5.6.7‐Tetrachlor‐10.10‐diäthoxy‐4.7‐ methylen‐4.7.8.9‐tetrahydro‐phthalan, 1.4.5.6‐Tetrachlor‐7.7dimethoxy‐2.3‐bis‐hydroxymethyl‐ bicyclo[2.2.1]hepten‐(5), dessen Diacetat oder cyclischem Sulfit mit konz. Schwefelsäure wird das 4.5.6.7‐Tetrachlor‐10.10‐ dihydroxy‐4.7‐methylen‐4.7.8.9‐tetrahydro‐phthalanhydrat erhalten, das durch partielle Dehydratisierung in das Ketonhydrat und in das 4.5.6.7‐Tetrachlor‐4.7‐methylen‐4.7.8.9‐ tetrahydro‐phthalanon‐(10) übergeht.
Zur Kenntnis der sogenannten Alkalicarbonyle, VII. Die Reaktion von Kohlenmonoxid mit geschmolzenem Rubidium und Caesium
Authors: Büchner Werner
Published: June 2007

Die Reduktion von Kohlenmonoxid durch geschmolzenes Rubidium und Caesium führt zu Substanzgemischen. Bei Reaktionstemperaturen wenig oberhalb der Schmelzpunkte der Metalle besteht dieses aus den jeweiligen Metallacetylendiolaten, MeOCCOMe, und metallorganischen Verbindungen gleicher Bruttozusammensetzung. Reaktion bei höheren Temperaturen führt zu Hexahydroxy‐benzolsalzen. Ein Vergleich mit dem entsprechenden Kaliumsystem zeigt, daß die Maximalausbeute an Hexahydroxybenzol mit zunehmender Größe der Metalle vom Kalium zum Caesium hin sinkt.
Rhodomycine, IX. Antibiotica aus Actinomyceten, LII. β‐Iso‐rhodomycinon
Authors: Brockmann Hans , Niemeyer Jürgen , Rode Wilhelm
Published: June 2007

β‐Iso‐rhodomycinon, das Aglykon des roten Antibioticums Iso‐rhodomycin A wird isoliert und in seiner Konstitution aufgeklärt. — Katalytische Hydrierung von β‐Iso‐rhodomycinon liefert γ‐Iso‐rhodomycinon, das auch aus Streptomyceten‐Kulturen isoliert wurde.
Über die milde Hydrolyse des Buchenlignins, I. Isolierung des Dimethyl‐pyrogallylglycerins
Authors: Nimz Horst
Published: June 2007

Durch Perkolation von Buchenholz mit heißem Wasser wird ein Gemisch von Phenolen gewonnen, aus dem das Dimethyl‐pyrogallylglycerin (4) in einer Ausbeute von 2.5% des Ligninanteils isoliert wird. Es ist optisch inaktiv und läßt sich in zwei kristalline diastereomere Formen aufteilen. Die Struktur wird durch eine Synthese bewiesen.
Synthese von tritiummarkiertem Ornithin und Arginin hoher spezifischer Aktivität
Authors: Birkofer Leonhard , Hempel Klaus , Nouvertné Werner
Published: June 2007

Durch katalytische Hydrierung von α‐Acetamino‐β‐[2‐chloracetamino‐äthyl]‐acrylsäure mit Tritium und anschließende Hydrolyse wurde DL‐Ornithin‐[α.β‐T2] dargestellt. Dieses ließ sich durch Umsetzung mit O‐Methyl‐isoharnstoff in DL‐Arginin‐[α.β‐T2] überführen.
Triterpene, XV. Die Darstellung und Forster‐Reaktion von 19β.28‐Epoxy‐3‐oxo‐2‐anti‐oximino‐1α‐cyan‐18αH‐oleanan sowie die Bromierung von 19β.28‐Epoxy‐3‐oxo‐1α‐cyan‐18αH‐oleanan
Authors: Huneck Siegfried
Published: June 2007

Die Darstellung von 3‐Oxo‐2‐anti‐oximino‐1α‐cyan‐allo‐betulan (4) und die Bromierung von 3‐Oxo‐1α‐cyan‐allo‐betulan (2) werden beschrieben. Die Forster‐Reaktion mit 4 führt zu 3‐Oxo‐1‐cyan‐allo‐betulen‐(1) (7).
Organische Schwefelverbindungen, XLV. Untersuchungen über die Einwirkung von 4.5‐Dioxo‐2‐thioxo‐1.3‐dithiolan und Thion‐kohlensäureestern auf Diaryl‐diazomethane
Authors: Schönberg Alexander , König Barbara , Frese Emil
Published: June 2007

4.5‐Dioxo‐2‐thioxo‐1.3‐dithiolan (2a) setzt sich mit den Diaryl‐diazomethanen 1a–e rasch zu den Episulfiden 3a–e gemäß (2) um, während 2‐Thioxohexahydro‐1.3‐benzodithiolan (2b) und 2‐Thioxo‐1.3‐dithiolan (2c) nur mit 9‐Diazo‐xanthen (1d) in diesem Sinne reagieren. Die so erhaltenen Episulfide 3 gehen leicht unter Schwefeleliminierung in die entsprechenden, farbigen Äthylenderivate 4 über. Der Bildungsmechanismus wird besprochen. Versuche, Thion oder Thiol‐thion‐kohlensäureester mit Diaryl‐diazomethanen (1) gemäß (1) umzusetzen, waren erfolglos. Hier trat Zersetzung der Diazoverbindungen unter Stickstoffabspaltung ein.
Darstellung und Eigenschaften von Tris‐trichlormethylsulfenyl‐isocyanurat
Authors: Haas Alois , Oh Dong Young
Published: June 2007

Die Umsetzung von Perchlormethylmercaptan mit AgOCN bzw. mit Pb(OCN)2 in Benzol oder Acetonitril liefert (Cl3CSNCO)3. Die Hydrolyse dieses Trimeren führt nahezu quantitativ zu Cyanursäure, Schwefel, Kohlendioxid und Chlorwasserstoff. Die hieraus erschlossene Struktur eines Tris‐trichlormethylsulfenylisocyanurats steht im Einklang mit dem IR‐Spektrum. — Mit Kaliumselenocyanat reagiert Perchlormethylmercaptan in Benzol zu Cl3CSSCCl3, Se(SeCN)2 und Se(CN)2.
Doping Golden Buckyballs: Cu@Au16‐ and Cu@Au17‐ Cluster Anions.
Authors: Wang Lei‐Ming , Bulusu Satya , Zhai Hua‐Jin , Zeng Xiao‐Cheng , Wang Lai‐Sheng
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Structural Variations in Pyrochlore‐Structured Bi2Hf2O7, Bi2Ti2O7 and Bi2Hf2‐xTixO7 Solid Solutions as a Function of Composition and Temperature by Neutron and X‐Ray Diffraction and Raman Spectroscopy.
Authors: Henderson Stuart J. , Shebanova Olga , Hector Andrew L. , McMillan Paul F. , Weller Mark T.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel Eu3+‐Doped Red‐Emitting Phosphor Gd2Mo3O9 for White‐Light‐Emitting‐Diodes (WLEDs) Application.
Authors: Zhao Xiaoxia , Wang Xiaojun , Chen Baojiu , Meng Qingyu , Di Weihua , Ren Guozhong , Yang Yanmin
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
High‐Pressure Synthesis and Properties of Solid Solutions Between BiMnO3 and BiScO3.
Authors: Belik Alexei A. , Yokosawa Tadahiro , Kimoto Koji , Matsui Yoshio , Takayama‐Muromachi Eiji
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
BaSr(NH4)Mg5F15, a Tetragonal Tungsten Bronze Structure with Ammonium Barium Disorder and Its Solid Solutions BaxSr2‐x(NH4)Mg5F15 (x = 1.8—0.6).
Authors: Kubel F. , Pantazi M.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Solvent‐Free Synthesis of Zn—Al Layered Double Hydroxides.
Authors: Chitrakar Ramesh , Tezuka Satoko , Sonoda Akinari , Sakane Kohji , Ooi Kenta , Hirotsu Takahiro
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hydrothermal Synthesis of Electrochemically Active LiMnPO4.
Authors: Fang Haisheng , Li Liping , Li Guangshe
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Chiral C2‐Symmetric Methylene‐ and Boron‐Bridged Bis(imidazolines).
Authors: Ramalingam Balamurugan , Neuburger Markus , Pfaltz Andreas
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Diene‐Transmissive Cycloadditions: Control of Monocycloaddition by Self‐Assembly on a Lewis Acid Template.
Authors: Santos Souweha Michael , Arab Akram , ApSimon Megan , Fallis Alex G.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reaction of Electron‐Deficient N=N, N=O Double Bonds, Singlet Oxygen, and CC Triple Bonds with Acyloxyketenes or Mesoionic 1,3‐Dioxolium‐4‐olates: Generation of Unstable Mesoionic 1,3‐Dioxolium‐4‐olates from Acyloxyketenes.
Authors: Hamaguchi Masashi , Tomida Naoki , Iyama Yuji
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chloroform Is Not Solvent but Activator for Cobalt Complex Catalyst of Enantioselective Borohydride Reduction.
Authors: Kokura Ai , Tanaka Saiko , Teraoka Haruna , Shibahara Atsushi , Ikeno Taketo , Nagata Takushi , Yamada Tohru
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Improved Ruthenium Catalyst for the Environmentally Benign Amination of Primary and Secondary Alcohols.
Authors: Hollmann Dirk , Tillack Annegret , Michalik Dirk , Jackstell Ralf , Beller Matthias
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Oxidative Conversion of Primary Alcohols, and Primary, Secondary, and Tertiary Amines into the Corresponding Nitriles with 1,3‐Diiodo‐5,5‐dimethylhydantoin in Aqueous NH3.
Authors: Iida Shinpei , Togo Hideo
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ultracentrifuge‐Mediated Diels—Alder Reaction in a Two‐Phase System of Water and Chloroform.
Authors: Hayashi Yujiro , Takeda Mitsuhiro , Shoji Mitsuru , Morita Masataka
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Iodination and Iodonitration of Phenylacetylene under Solvent‐Free Conditions.
Authors: Tveryakova E. N. , Miroshnichenko Yu. Yu. , Perederina I. A. , Yusubov M. S.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Syntheses of 1‐Aryl‐2,2,2‐trifluoroethylamines via Diastereoselective 1,2‐Addition of Arylmetals to 2‐Methyl‐N‐(2,2,2‐trifluoroethylidene)propane‐2‐sulfinamide.
Authors: Truong Vouy Linh , Menard Madelaine S. , Dion Isabelle
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ruthenium‐Catalyzed Sequential Reactions: Deracemization of Secondary Benzylic Alcohols.
Authors: Shimada Yusuke , Miyake Yoshihiro , Matsuzawa Hiroshi , Nishibayashi Yoshiaki
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
In(III)‐Mediated Chemoselective Dehydrogenative Interaction of ClMe2SiH with Carboxylic Acids: Direct Chemo‐ and Regioselective Friedel—Crafts Acylation of Aromatic Ethers.
Authors: Babu Srinivasarao Arulananda , Yasuda Makoto , Baba Akio
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Dramatic Effect of Lewis Acid Catalysts on Nickel‐Catalyzed Carbocyanation of Alkynes.
Authors: Nakao Yoshiaki , Yada Akira , Ebata Shiro , Hiyama Tamejiro
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Transformations of N‐Allyl‐N‐(phenylethynyl)arenesulfonamides into 2,2‐Disubstituted 4‐Pentenenitriles Through Aza‐Claisen Rearrangement that Follows Carbomagnesiation.
Authors: Yasui Hiroto , Yorimitsu Hideki , Oshima Koichiro
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Facile Synthesis of Nitriles from Aromatic Aldehydes Using DMSO‐I2.
Authors: Gaikwad Digambar D. , Renukdas Sameer V. , Kendre Babasaheb V. , Shisodia Suresh U. , Borade Ravikumar M. , Shinde Praveen S. , Chaudhary Sunil S. , Pawar Rajendra P.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chiral Scandium‐Catalyzed Highly Stereoselective Ring‐Opening of meso‐Epoxides with Thiols.
Authors: Ogawa Chikako , Wang Naiwei , Kobayashi Shu
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
NbCl5‐Catalyzed One‐Pot Mannich‐Type Reaction: Three Component Synthesis of β‐Amino Carbonyl Compounds.
Authors: Wang Rui , Li Bo‐gang , Huang Tai‐kun , Shi Lin , Lu Xiao‐xia
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalytic Asymmetric Addition of Alkynylzinc Reagents to Nitrones.
Authors: Konishi Atsuko , Wei Weilin , Kobayashi Masato , Fujinami Shuhei , Ukaji Yutaka , Inomata Katsuhiko
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Claisen Rearrangement/Baylis—Hillmann Reaction/Ring‐Closing Metathesis as Bases for the Construction of Substituted Cyanonaphthalenes.
Authors: Chen Po‐Yuan , Chen Hsing‐Ming , Chen Liang‐Yeu , Tzeng Jing‐Yu , Tsai Jui‐Chi , Chi Ping‐Cheng , Li Sie‐Rong , Wang Eng‐Chi
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Approaches to Open Fullerenes: Synthesis and Kinetic Stability of Diels—Alder Adducts of Substituted Isobenzofurans and C60.
Authors: Chuang Shih‐Ching , Sander Michael , Jarrosson Thibaut , James Scott , Rozumov Eugene , Khan Saeed I. , Rubin Yves
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Approaches to Open Fullerenes: Synthesis and Thermal Stability of cis‐1 Bis(isobenzofuran) Diels—Alder Adducts of C60.
Authors: Sander Michael , Jarrosson Thibaut , Chuang Shih‐Ching , Khan Saeed I. , Rubin Yves
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Effective Synthesis of 5‐Substituted Butenolide Derivatives by Using Cinchonidine‐Derived Quaternary Ammonium Phenoxide Catalyst.
Authors: Nagao Hitoshi , Yamane Yoshinobu , Mukaiyama Teruaki
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rh(II)‐Catalyzed Isomerization of 2‐Aryl‐2H‐azirines to 2,3‐Disubstituted Indoles.
Authors: Chiba Shunsuke , Hattori Gaku , Narasaka Koichi
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Regioselective Synthesis of 1‐Alkyl‐ or 1‐Aryl‐1H‐indazoles via Copper‐Catalyzed Cyclizations of 2‐Haloarylcarbonylic Compounds.
Authors: Vina Dolores , del Olmo Esther , Lopez‐Perez Jose L. , San Feliciano Arturo
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Versatile Spirocyclic Glycine‐Based Nitrones and Their Highly Stereoselective 1,3‐Dipolar Cycloaddition.
Authors: Cheng Shangli , Wu Huimin , Hu Xianmin
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Improved Synthesis of 2‐(3H)Benzothiazolethiones under Microwave Irradiation.
Authors: Huang Wei , Tan Ying , Ding Ming‐Wu , Yang Guang‐Fu
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
One‐Pot Synthesis of 1,4‐Disubstituted 1,2,3‐Triazoles from Terminal Acetylenes and in situ Generated Azides.
Authors: Odlo Kristin , Hoeydahl Edmund Andre , Handen Tond Vidar
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Preparation of Functionalized 3,4‐Pyridynes via 2‐Magnesiated Diaryl Sulfonates.
Authors: Lin Wenwei , Chen Ling , Knochel Paul
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Preparation of New Nitrogen‐Bridged Heterocycles. Part 59. Syntheses and Intramolecular Interactions of 3‐(Acylmethylthio)‐ and 3‐[(3‐Ethoxycarbonyl‐2‐propenyl)thio]thieno[3,4‐b]indolizine Derivatives.
Authors: Kakehi Akikazu , Suga Hiroyuki , Isogai Hirohide
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Autocatalysis Induced by Octahedral Tris(acetylacetonato)chromium(III) Complex as a Homogeneous Chiral Initiator.
Authors: Kawasaki Tsuneomi , Omine Toshiki , Sato Mirai , Morishita Yosuke , Soai Kenso
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Regioselective Synthesis of Fused Benzopyrazolo[3,4‐b]quinolines under Solvent‐Free Conditions.
Authors: Quiroga Jairo , Portilla Jaime , Serrano Hugo , Abonia Rodrigo , Insuasty Braulio , Nogueras Manuel , Cobo Justo
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Anomalous Reaction of Rh2(OAc)4‐Generated Transient Carbonyl Ylides: Chemoselective Synthesis of Epoxy‐Bridged Tetrahydropyranone, Oxepanone, Oxocinone, and Oxoninone Ring Systems.
Authors: Muthusamy Sengodagounder , Krishnamurthi Janagiraman , Babu Srinivasarao Arulananda , Suresh Eringathodi
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
“contra‐Michael” Addition of Alkyllithiums to Silicon‐ and Phenyl‐Substituted α,β‐Unsaturated Amides in the Presence of t‐BuOK.
Authors: Hinago Tomoko , Teshima Nana , Kenmoku Satoko , Kamata Tiyako , Terauchi Nahoko , Chiba Nao , Satoh Chikako , Nakamura Aya , Asaoka Morio
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Extremely Efficient Three‐Component Reaction of Aldehydes/Ketones, Amines and Phosphines (Kabachnik—Fields Reaction) for the Synthesis of α‐Aminophosphonates Catalyzed by Magnesium Perchlorate.
Authors: Bhagat Srikant , Chakraborti Asit K.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New Iridoid Glycosides from Lamium eriocephalum subsp. eriocephalum.
Authors: Yalcin Funda Nuray , Ersoez Tayfun , Avci Kuersat , Gotfredsen Charlotte H. , Jensen Soeren R. , Calis Ihsan
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Selective Monocyclization of Epoxy Terpenoids Promoted by Zeolite NaY. A Short Biomimetic Synthesis of Elegansidiol (IV) and Farnesiferols B—D (V)—(VII).
Authors: Tsangarakis Constantinos , Arkoudis Elias , Raptis Christos , Stratakis Manolis
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of the Sesquiterpenoid Lactarane Skeleton by a Radical Cyclobutylcarbinyl/Cyclopropylcarbinyl Fragmentation Sequence.
Authors: Lange Gordon L. , Corelli Nadia
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel Alkaloids from Stemona sessilifolia.
Authors: Qian Jie , Zhan Zha‐Jun
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Synthesis of (‐)‐Senepodine G (I) and (‐)‐Cermizine C (II).
Authors: Snider Barry B. , Grabowski James F.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Synthesis of (.+‐.)‐Debromoflustramine B and E and (.+‐.)‐Debromoflustramide B Based on One‐Pot Intramolecular Ullmann Coupling and Claisen Rearrangement.
Authors: Miyamoto Hiroshi , Okawa Yoichiro , Nakazaki Atsuo , Kobayashi Susumu
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Helical Self‐Assembled Chromophore Clusters Based on DNA‐Like Architecture.
Authors: Mayer‐Enthart Elke , Wagner Clemens , Barbaric Janez , Wagenknecht Hans‐Achim
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Fluorescence‐Quencher Pair for DNA Hybridization Studies Based on Hydrophobic Base Surrogates.
Authors: Stoop Matthias , Zahn Alain , Leumann Christian J.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Characterization of Fluorescent, Unnatural Base Pairs.
Authors: Mitsui Tsuneo , Kimoto Michiko , Kawai Rie , Yokoyama Shigeyuki , Hirao Ichiro
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Conformational Flexibility of Ribosomal Decoding‐Site RNA Monitored by Fluorescent Pteridine Base Analogues.
Authors: Parsons Jerod , Hermann Thomas
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Designing New Isomorphic Fluorescent Nucleobase Analogues: The Thieno[3,2‐d]pyrimidine Core.
Authors: Tor Yitzhak , Del Valle Susan , Jaramillo David , Srivatsan Seergazhi G. , Rios Andro , Weizman Haim
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nonalkaloid Constituents from Stemona japonica
Authors: Yang Xin‐Zhou , Lin Li‐Gen , Tang Chun‐Ping , Liu Yong‐Qiang , Ye Yang
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Structure Elucidation of Auxofuran, a Metabolite Involved in Stimulating Growth of Fly Agaric, Produced by the Mycorrhiza Helper Bacterium Streptomyces AcH 505.
Authors: Keller Simone , Schneider Kathrin , Suessmuth Roderich D.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
TMC‐151 A Monoacetate, a New Polyketide from Bionectria ochroleuca.
Authors: Ju Yu‐Ming , Juang Shin‐Hun , Chen Ke‐Jun , Lee Tzong‐Huei
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hollow Silica Nanospheres: In situ, Semi‐in situ, and Two‐Step Synthesis.
Authors: Darbandi Masih , Thomann Ralf , Nann Thomas
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hexafluoro‐, Heptafluoro‐, and Octafluoro‐Salts, and [MnF5n+1]‐ (n = 2, 3, 4) Polyfluorometallates of Singly Charged Metal Cations, Li+—Cs+, Cu+, Ag+, In+ and Tl+
Authors: Mazej Zoran , Hagiwara Rika
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New Directions for Low‐Dimensional Thermoelectric Materials
Authors: Dresselhaus Mildred S. , Chen Gang , Tang Ming Y. , Yang Ronggui , Lee Hohyun , Wang Dezhi , Ren Zhifeng , Fleurial Jean‐Pierre , Gogna Pawan
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Magnetically Soft Nanomaterials for High‐Temperature Applications
Authors: Kulik T. , Ferenc J. , Kolano‐Burian A. , Liang X. B. , Kowalczyk M.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Growth, Interface Structure, and Magnetic Properties of Fe/GaAs and Fe3Si/GaAs Hybrid Systems
Authors: Herfort Jens , Trampert Achim , Ploog Klaus H.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
D. I. Mendeleev: Reflecting on His Death in 1907
Authors: Goldin M. D.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Oxime Palladacycles Revisited: Stone‐Stable Complexes Nonetheless Very Active Catalysts
Authors: Alacid Emilio , Alonso Diego A. , Botella Luis , Najera Carmen , Pacheco M. Carmen
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalytic Direct Arylation of Heteroaromatic Compounds
Authors: Satoh Tetsuya , Miura Masahiro
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Development of Novel Stabilization Method for Unstable Cationic π‐Electron Systems and Its Application to the Investigation of Their Electronic Structures
Authors: Nishinaga Tohru
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Microreactors: A New Tool for the Synthetic Chemist
Authors: Watts Paul , Wiles Charlotte
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Advanced Organic Synthesis Using Microreactor Technology
Authors: Ahmed‐Omer Batoul , Brandt Johan C. , Wirth Thomas
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
How to Polymerize Ethylene in a Highly Controlled Fashion?
Authors: Kempe Rhett
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Supramolecular Chemistry in Water
Authors: Oshovsky Gennady V. , Reinhoudt David N. , Verboom Willem
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Metallocene Sulfoxides as Precursors of Metallocenes with Planar Chirality
Authors: Ferber Benoit , Kagan Henri B.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Graphenes as Potential Material for Electronics
Authors: Wu Jishan , Pisula Wojciech , Muellen Klaus
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Progress of Studies on the Natural Cembranoids from the Soft Coral Species of Sarcophyton Genus
Authors: Li Yulin , Peng Lizeng , Zhang Tao
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Synthesis of Natural Terpenoids Containing the Bicyclo[5.3.0]decane Skeleton
Authors: Carret Sebastien , Coquerel Yoann , Giannini Audrey , Banchelin Thomas Sainte‐Luce , Depres Jean‐Pierre
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Metalated Heterocycles in Organic Synthesis: Recent Applications
Authors: Chinchilla Rafael , Najera Carmen , Yus Miguel
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Utilization of Nonbonded Interactions Involving Organoselenium Compounds
Authors: Coles Martyn P.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Post‐Condensation Modifications of the Passerini and Ugi Reactions
Authors: Marcaccini Stefano , Torroba Tomas
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Diels—Alder Cycloaddition as an Efficient Tool for Linking π‐Donors onto Fullerene C60
Authors: Hudhomme Pietrick
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Organocatalytic Approach to Optically Active Six‐Membered Rings
Authors: Joergensen Karl Anker
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Epoxidation of Non‐Activated Olefins
Authors: Matsumoto Kazuhiro , Katsuki Tsutomu
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Boron Enolates in the Syntheses of Natural Products
Authors: Dembitsky V. M. , Abu Ali H. , Srebnik M.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
[60]Fullerene‐Acene Chemistry
Authors: Briggs Jonathan B. , Miller Glen P.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Functionalization of [60]Fullerene Through the Anionic Route
Authors: Cousseau Jack , Allard Emmanuel , Chopin Stephanie
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Benzonaphthazepine and Pyrrolophenanthridine Alkaloids Using a Pd‐Mediated Biaryl Coupling Reaction Involving Regioselective C—H Activation by Intramolecular Coordination of a Benzylamine to Pd
Authors: Harayama Takashi
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Bridging Phosphane Ligand Complexes: A Very Rare Coordination Mode
Authors: Lescop Christophe
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chemistry and Evolution of the Pioneer Organism
Authors: Waechtershaeuser Guenter
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chemical Aspects of Synthetic Biology
Authors: Luisi Pier Luigi
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Errors and Alternatives in Prebiotic Replication and Catalysis
Authors: Ninio Jacques
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
From Interstellar Amino Acids to Prebiotic Catalytic Peptides: A Review
Authors: Brack Andre
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Recent Applications of Flow Injection Spectrophotometry to Pharmaceutical Analysis
Authors: Tzanavaras Paraskevas D. , Themelis Demetrius G.
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Natural Porphyrins: Chlorophylls. UV—VIS Spectrophotometric Measurement and Calculations
Authors: Fagadar‐Cosma Eugenla , Fulias Adriana , Chlriac Adrian
Published: June 2007

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective toxicokinetics and tissue distribution of ethofumesate in rabbits
Authors: Zhu Wentao , Dang Ziheng , Qiu Jing , Lv Chunguang , Jia Guifang , Li Li , Zhou Zhiqiang
Published: June 2007

The stereoselective toxicokinetics of ethofumesate enantiomers following a single intravenous (i.v.) administration at doses of 30 mg/kg were investigated in rabbits. Plasma concentrations of (+)‐ and (−)‐ethofumesate were analyzed by a validated chiral HPLC method that involved extraction of plasma with organic solvent followed by separation on a cellulose‐Tris‐(3,5‐dimethylphenylcarbamate)‐based chiral column and quantification by UV absorbance at 230 nm. Plasma concentration‐time curves after i.v. administration were best described by an open two‐compartment model. The concentration of the (−)‐enantiomer decreased more rapidly than that of the (+)‐enantiomer. Significant differences in toxicokinetic parameters between the two enantiomers indicated that stereoselective behavior occurred with the (−)‐enantiomer being preferentially metabolized and eliminated. Chirality 19:632–637, 2007 © 2007 Wiley‐Liss, Inc.
Silicon crystal fibers: difficulties and progress
Authors: Alshourbagy M. , Toncelli A. , Tonelli M. , Marchetti F.
Published: June 2007

In this work difficulties and the progress in growing Silicon fibers by μ‐PD technique have been reported. Some main instability growth problems have been solved. Smooth temperature gradient is obtained for longer distance in and under the hot zone part by making an effective change in our hot zone. Also we obtained temperature stabilization as good as 0.2 K. The level of impurities was minimized by using etching and baking processes. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Growth and spectroscopic investigation of Yb/Nd co‐doped KLu(WO4)2 laser crystals
Authors: Zhao Hongyang , Wang Jiyang , Ling Zongcheng , Li Jing , Zhang Huaijin , Zhang Jianxiu , Xia Hairui
Published: June 2007

Single crystals of Yb, Nd: KLu(WO4)2 (Yb, Nd: KLW) of dimensions up to 40mm× 40mm×5mm have been grown by top‐seeded solution growth (TSSG) method. X‐ray powder diffraction pattern was measured and compared with that of Nd: KLuW and Yb: KLuW. Absorption and fluorescence spectra were measured at room temperature. The Judd‐Ofelt theory was applied to analyze the spectrum of Nd, Yb: KLuW crystal. The intensity parameters Ωt (t=2, 4 and 6) were calculated as Ω2=20.68×10‐20cm2, Ω4=11.04×10‐20cm2, Ω6=6.74×10‐20cm2 respectively, with a root mean square deviation of 0.58×10‐20 cm2. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Dendritic flower calcium hydroxide grown on aluminium substrate using polyacrylamide as a template
Authors: Jiang Yabing , Chen Qinghua , Chen Jiangan , Xiao Liren , Xu Jing , Liu Xinping , Huang Baoquan
Published: June 2007

This paper reports one method to grow dendritic flower calcium hydroxide on aluminium substrate using polyacrylamide as a template. A series of electron microscopy images show new images of the products and together with themogravimetry differential thermal analysis and other conventional techniques, the composition of the products was found to be calcium hydroxide containing polyacrylamide. The result of the mechanism for the formation of the dendritic flower made of primary particles is also presented. An understanding of this mesoscale transformation process will be helpful in controlling the aggregation‐driven formation of complex higher‐order structures materials. This study could provide an additional tool for designing advanced materials and could be used for synthesis of more complex structures. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Impedance spectroscopy of Na and Nd doped strontium bismuth titanate
Authors: Rizwana R. , Radha Krishna T. , James A. R. , Sarah P.
Published: June 2007

Sr0.2Na0.4Nd0.4Bi4Ti4O15 is prepared by Sol‐Gel route using the modified polymeric precursor method based on the Pechini process and its electrical properties are investigated by Complex Impedance Spectroscopy (CIS). Results are presented in two ways, complex plane plots (real versus imaginary) and spectroscopic plots (real and imaginary against frequency). CIS has provided convincing evidence for the existence of both grain (bulk) and grain‐boundary effects that were separated in the frequency domain of the impedance spectrum. Experimental data are fitted to two parallel RC equivalent circuits in series. The values of resistance and capacitance of bulk and grain boundary contributions are also calculated. Relaxation times are calculated for both grains and grainboundaries. Conduction and charge carrier behaviors are studied from frequency and temperature dependence of ac conductivity. The ac conductivity follows a two‐power law behavior at different temperatures with frequency exponents s1 and s2. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Influence of doping on OH absorption in LiNbO3 crystals
Authors: Choubey R. K. , Khattak B. Q. , Kar S. , Ramshankar P. , Sen P. , Bartwal K. S.
Published: June 2007

Undoped, Cr doped and Mg, Cr codoped LiNbO3 crystals were grown by conventional Czochralski technique. Comparative study was carried out using Fourier transform infrared (FTIR) and UV‐Visible spectroscopy. Infrared optical absorption for OH– ion has been used to study the effect of dopants on the crystals. The peak position of OH– shift to 3535 cm‐1 for Mg, Cr codoped crystals compared to 3484 cm‐1 for undoped and Cr doped crystals. Prominent absorption bands are found in the visible region centered at 480 nm (20833 cm‐1) and 653 nm (15313 cm‐1) in Cr doped crystals. Whereas in Mg, Cr codoped crystals these broad absorption bands are red shifted to 517 nm (19342 cm‐1) and 678 nm (14749 cm‐1). UV cutoff in Cr doped crystals shift towards higher wavelength compared to undoped LiNbO3 crystals. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Magnetic Microfields of Random Currents
Authors: Romanovsky M.Yu. , Ebeling W.
Published: June 2007

The distribution of magnetic microfields in systems with stochastic currents including plasmas, solids, and electrolytes is studied. It is shown that the random currents generate magnetic microfields distributed similar to the Holtsmark distribution for the electrical fields. Several relevant physical effects provided by this magnetic microfield and applications including plasma displays, microelectronic chips and currents in biological objects are discussed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Interaction of Dense Nanoplasmas with Intense Laser Fields: Ionization Dynamics in Large Silver Clusters
Authors: Bornath Th. , Hilse P. , Schlanges M.
Published: June 2007

The interaction of intense laser fields with silver clusters is investigated theoretically using the nanoplasma model. Motivated by recent experiments with dual pulse excitation, special attention is directed on the ionization dynamics. The yield of highly charged ions is sensitive to the delay between the two pulses which is connected with resonance phenomena in the excitation. For a single cluster size, a rich structure in the yield as a function of the delay is found in the numerical results. This structure is smeared out, however, for cluster size distributions occuring in the experiments mentioned above. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)