bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: α,β‐Unsaturated Imines via Ru‐Catalyzed Coupling of Allylic Alcohols and Amines.
Authors: Rigoli Jared W. , Moyer Sara A. , Pearce Simon D. , Schomaker Jennifer M. 
Published: June 2012

AbstractA mild and atom‐economical synthesis of the title compounds by using a commercially available catalyst without the use of suprastoichiometric amounts of oxidants or dehydrating reagents is presented.
ChemInform Abstract: A Convenient and Practical Synthesis of Anisoles and Deuterated Anisoles by Palladium‐Catalyzed Coupling Reactions of Aryl Bromides and Chlorides.
Authors: Gowrisankar Saravanan , Neumann Helfried , Beller Matthias 
Published: June 2012

Abstract(Hetero)aryl halides undergo selective C—O cross‐coupling reactions with methanol in the presence of a catalyst system consisting of Pd(OAc)2 and a bispyrazolylphosphine ligand giving the corresponding ethers (III) in good yields.
ChemInform Abstract: An In‐Water, On‐Water Domino Process for Synthesis.
Authors: Norcott Philip , Spielman Calan , McErlean Christopher S. P. 
Published: June 2012

AbstractThe reaction of anilines (I) with 2‐methylhydroquinone (II) in aqueous hydrogen peroxide gives rise to a mixture of regioisomeric anilinoquinones (III) and (IV).
ChemInform Abstract: Asymmetric Synthesis of γ‐Nitroesters by an Organocatalytic One‐Pot Strategy.
Authors: Jensen Kim L. , Poulsen Pernille H. , Donslund Bjarke S. , Morana Fabio , Joergensen Karl Anker 
Published: June 2012

AbstractIn the reaction of some aldehydes (V), formation of acetal by‐products is inhibited by increasing the amount of NBS.
ChemInform Abstract: FeCl3·6H2O‐Catalyzed Acceleration of the Acylation of Sodium Azide with N‐Acylbenzotriazoles.
Authors: Zhong Zhiyun , Hu Jieling , Wang Xiaoxia , Liu Junhua , Zhang Longfeng 
Published: June 2012

AbstractComplete conversion of starting compounds (I) and easy removal of the catalyst and the by‐product makes the protocol suitable for large‐scale preparation.
ChemInform Abstract: Zinc Chloride Catalyzed Three‐Component Ugi Reaction: Synthesis of N‐Cyclohexyl‐2‐(2‐hydroxyphenylamino)acetamide Derivatives.
Authors: Shaabani Ahmad , Keshipour Sajjad , Shaabani Shabnam , Mahyari Mojtaba 
Published: June 2012

AbstractEither aldehydes or analogous substrates (V) and (VII) can be used for the preparation of the title compounds as a class of pharmaceutical active substances.
ChemInform Abstract: Cyanation of Aryl Bromides with K4[Fe(CN)6] Catalyzed by Dichloro[bis{1‐(dicyclohexylphosphanyl)piperidine}]palladium, a Molecular Source of Nanoparticles, and the Reactions Involved in the Catalyst‐Deactivation Processes.
Authors: Gerber Roman , Oberholzer Miriam , Frech Christian M. 
Published: June 2012

AbstractPCP is as a highly active catalyst for cyanation reactions of various (hetero)aryl bromides.
ChemInform Abstract: Pd‐Catalyzed Decarboxylative Cross‐Couplings of Potassium Malonate Monoesters with Aryl Halides.
Authors: Feng Yi‐Si , Wu Wei , Xu Zhong‐Qiu , Li Yan , Li Ming , Xu Hua‐Jian 
Published: June 2012

AbstractThe use of aryl chlorides instead of aryl bromides gives the products in lower yields.
ChemInform Abstract: Aryl Methyl Sulfides as Substrates for Rhodium‐Catalyzed Alkyne Carbothiolation: Arene Functionalization with Activating Group Recycling.
Authors: Hooper Joel F. , Chaplin Adrian B. , Gonzalez‐Rodriguez Carlos , Thompson Amber L. , Weller Andrew S. , Willis Michael C. 
Published: June 2012

AbstractThe optimized Rh(I)‐catalyzed reaction of aryl methyl sulfides such as (I) with terminal alkynes affords arylvinyl methyl sulfides.
ChemInform Abstract: Palladium‐Catalyzed Site‐Selective Arylation of Symmetric Dichlorobenzaldehyde to Non‐symmetric Diaryl Benzaldehyde via Suzuki Coupling.
Authors: Dey Raju , Ranu Brindaban C. 
Published: June 2012

AbstractA convenient strategy for the synthesis of unsymmetrical 2,6‐diarylbenzaldehydes from substrate (I) is developed.
ChemInform Abstract: Design of N‐Cinnamyl Sulfinamides as New Sulfur‐Containing Olefin Ligands for Asymmetric Catalysis: Achieving Structural Simplicity with a Categorical Linear Framework.
Authors: Jin Shen‐Shuang , Wang Hui , Zhu Ting‐Shun , Xu Ming‐Hua 
Published: June 2012

AbstractA novel, unique, chiral, and structurally simple sulfonamide‐olefin ligand is applied to the presented highly enantioselective 1,4‐addition reactions.
ChemInform Abstract: First Synthesis and Anticancer Activity of Novel Naphthoquinone Amides.
Authors: Pradidphol Narathip , Kongkathip Ngampong , Sittikul Pichamon , Boonyalai Nanlawat , Kongkathip Boonsong 
Published: June 2012

AbstractStarting from 1‐hydroxy‐2‐naphthoic acid, a series of novel naphthoquinone aromatic amides is synthesized by a new route using Fremy′s salt oxidation and tBu‐OOH/TritanB hydroxylation as the key steps.
ChemInform Abstract: Rhodium‐Catalyzed C—H Bond Activation/[4 + 2] Annulation/Aromatization Cascade to Produce Phenol, Naphthol, Phenanthrenol, and Triphenylenol Derivatives.
Authors: Hojo Daiki , Tanaka Ken 
Published: June 2012

AbstractReadily available conjugated alkynyl aldehydes and alkynes are suitable substrates for a successful title process.
ChemInform Abstract: Regioselective Arylation and Alkynylation of 2,3‐Dibromo‐1H‐inden‐1‐one by Suzuki—Miyaura and Sonogashira Cross‐Coupling Reactions.
Authors: Khera Rasheed Ahmad , Hussain Munawar , Nguyen Thai Hung , Eleya Nadi , Feist Holger , Villinger Alexander , Langer Peter 
Published: June 2012

AbstractThe Suzuki—Miyaura cross‐coupling of 2,3‐dibromo‐indenone (I) with 1 equiv.
ChemInform Abstract: Synthesis of 1‐Substituted 2‐Azaspiro[4.5]deca‐6,9‐dien‐8‐ones and 2‐Azaspiro[4.5]deca‐1,6,9‐trien‐8‐ones by Condensation of 2,6‐Dimethylphenol with Isobutyraldehydes and Nitriles.
Authors: Rozhkova Yu. S. , Khmelevskaya K. A. , Shklyaev Yu. V. , Ezhikova M. A. , Kodess M. I. 
Published: June 2012

AbstractThree‐component condensation of dimethylphenol (I) with isobutyraldehyde (II) and nitriles (III) and (V) in concentrated sulfuric acid gives rise to formation of spiro compounds (IV) and (VI), respectively.
ChemInform Abstract: Synthesis and Biological Evaluation of Novel Amprenavir‐Based P1‐Substituted Bi‐Aryl Derivatives as Ultra‐Potent HIV‐1 Protease Inhibitors.
Authors: Yan Jianwei , Huang Ning , Li Shukun , Yang Liu‐Meng , Xing Weiqiang , Zheng Yong‐Tang , Hu Youhong 
Published: June 2012

AbstractSome of the title compounds (I) show strong antiviral activities.
ChemInform Abstract: Novel Intramolecular Photocyclization of α‐Arylthiophene Derivatives.
Authors: Arai Noriyoshi , Tanaka Koichiro , Ohkuma Takeshi 
Published: June 2012

AbstractThe reaction is only successful with an aryl substituent at the 2‐position of the thiophene and the unique tricyclic skeletons are obtained as single diastereomers.
ChemInform Abstract: High‐Pressure Accelerated Asymmetric Organocatalytic Friedel—Crafts Alkylation of Indoles with Enones: Application to Quaternary Stereogenic Centers Construction.
Authors: Lyzwa Dawid , Dudzinski Krzysztof , Kwiatkowski Piotr 
Published: June 2012

AbstractGenerally, good e.e values are observed for the products.
ChemInform Abstract: Direct Oxidative C—P Bond Formation of Indoles with Dialkyl Phosphites.
Authors: Wang Haolong , Li Xincheng , Wu Fan , Wan Boshun 
Published: June 2012

AbstractComplete regioselectivity is observed for 1,2‐unsubstituted substrates such as (I), whereas low amounts of 3‐phosphorylated products are also identified in the case of N‐methylated analogue (IV).
ChemInform Abstract: Synthesis, Structures, and Photochromic Properties of 3‐[(E)‐Alk‐1‐enyl] ‐4‐(1‐alkyl‐5‐methoxy‐2‐methyl‐1H‐indol‐3‐yl)furan‐2,5‐diones.
Authors: Popova L. L. , et al. et al. 
Published: June 2012

AbstractNew photochromic hetarylethenes (IV) are synthesized (5 examples) that are characterized by a high content of colored forms in the photostationary state compared to the unsubstituted analogues.
ChemInform Abstract: Kaolin/KOH Is an Efficient Heterogeneous Catalyst for the Synthesis of 3‐Hydroxy‐3‐indolyl Oxindoles.
Authors: Srihari G. , Murthy M. Marthanda 
Published: June 2012

AbstractKaolin preloaded with KOH is shown to be an efficient catalyst for the synthesis of the title compounds (III) from indoles (I) and isatins (II).
ChemInform Abstract: Facile Synthesis of β‐Lactam‐Grafted Spirooxindolopyrrolidine Through Regioselective 1,3‐Dipolar Cycloaddition Reaction.
Authors: Arumugam Natarajan , Raghunathan Raghavachary 
Published: June 2012

AbstractIn a one‐pot cycloaddition reaction, the azomethine ylide generated from β‐lactam (I) and sarcosine (II) reacts with (III) to afford spiropyrrolidine derivatives of type (IV).
ChemInform Abstract: Synthesis of Ionic Liquids Containing the Hydroxyl Functionality for Extracting Nonylphenol and Octylphenol in Water.
Authors: Fu Xin‐Mei , Dai Shu‐Gui 
Published: June 2012

AbstractNew ionic liquids containing the hydroxyl functionality (I) and (II) show much better extraction efficiencies for nonyl‐ and octylphenol than the common ionic liquids, such as [bmim]PF6.
ChemInform Abstract: Highly Stereoselective Catalytic Conjugate Addition of Acyl Anion Equivalent to Nitroolefins.
Authors: Uraguchi Daisuke , Ueki Yusuke , Ooi Takashi 
Published: June 2012

AbstractChiral tetraaminophosphonium aryloxide‐arylhydroxide CTAP is a highly efficient catalyst for the diastereo‐ and enantioselective addition of azlactone (I) to a range of nitroolefins.
ChemInform Abstract: Synthesis of Isoxazole Triflones.
Authors: Kawai Hiroyuki , Sugita Yutaka , Tokunaga Etsuko , Shibata Norio 
Published: June 2012

AbstractThe first practical synthesis of trifluoromethylsulfonyl‐substituted isoxazoles (III), (V) and (VII) is presented, involving base‐mediated cyclization of α‐triflyl ketones (I) and (VI) with aryl imidoyl chlorides (II) and (IV).
ChemInform Abstract: Facile Method for the Conversion of Semicarbazones/Thiosemicarbazones into Azines (under Microwave Irradiation) and Oxadiazoles (by Grinding).
Authors: Chattopadhyay Gautam , Ray Partha Sinha 
Published: June 2012

AbstractSemicarbazones (I) adsorbed on silica give azines (II) on microwave irradiation.
ChemInform Abstract: Novel Imidazo[2,1‐b][1,3,4]thiadiazole Carrying Rhodanine‐3‐acetic Acid as Potential Antitubercular Agents.
Authors: Alegaon Shankar G. , Alagawadi Kallanagouda R. , Sonkusare Pranali V. , Chaudhary Sagar M. , Dadwe Dilip H. , Shah Amol S. 
Published: June 2012

AbstractA simple, highly efficient, cost effective, and environmentally benign synthesis of the title compounds (IX) (7 examples) and related analogues (XI), (XIII) is developed using microwave technique.
ChemInform Abstract: InCl3 Catalyzed Domino Route to 2H‐Chromene‐2‐ones via [4 + 2] Annulation of 2‐Hydroxyarylaldehydes with α‐Oxoketene Dithioacetal under Solvent‐Free Conditions.
Authors: Verma Rajiv Kumar , Verma Girijesh Kumar , Shukla Gaurav , Singh Maya Shankar 
Published: June 2012

AbstractA wide variety of coumarin derivatives is prepared (43 examples), including ferrocenylcarbonyl‐substituted structures.
ChemInform Abstract: Conventional and Microwave‐Assisted Syntheses and Solid‐State Structure of New Coumarins and Angelicins.
Authors: Hejchman Elzbieta , Trykowska Konc Joanna , Maciejewska Dorota , Kruszewska Hanna 
Published: June 2012

AbstractNew coumarin (IIIa) and new angelicin (IVa) show promising anticancer activities against selected leukemia, non‐small‐cell lung and renal cancer lines.
ChemInform Abstract: A Facile Route to Flavone and Neoflavone Backbones via a Regioselective Palladium Catalyzed Oxidative Heck Reaction.
Authors: Khoobi Mehdi , Alipour Masoumeh , Zarei Samaneh , Jafarpour Farnaz , Shafiee Abbas 
Published: June 2012

AbstractA regioselective base‐free Pd‐catalyzed arylation of chromenones (I) and (IV) affords biologically interesting flavone or neoflavone derivatives.
ChemInform Abstract: Poly(4‐vinylpyridinium) Hydrogensulfate Catalyzed Synthesis of 12‐Aryl‐12H‐indeno[1,2‐b]naphtho[3,2‐e]pyran‐5,11,13‐triones.
Authors: Khaligh Nader Ghaffari 
Published: June 2012

AbstractA novel method for the synthesis of polycyclic triones of type (IV) includes a three‐component condensation in the presence of a recycable heterogeneous catalyst.
ChemInform Abstract: Microwave‐Assisted Synthesis of Hydropyridines and Study of the DPPH‐Scavenging Activity.
Authors: Montes‐Avila Julio , Delgado‐Vargas Francisco , Diaz‐Camacho Sylvia P. , Rivero Ignacio A. 
Published: June 2012

AbstractA variety of monocyclic or fused dihydropyridine derivatives is synthesized by use of microwave‐assisted Hantzsch protocol under solvent‐free conditions.
ChemInform Abstract: Diastereoselective Addition to N‐Acyliminium Ions with Aryl‐ and Alkenyl Boronic Acids via a Petasis‐Type Reaction.
Authors: Mizuta Satoshi , Onomura Osamu 
Published: June 2012

Abstract2‐Aryl‐3‐hydroxypiperidines are obtained as single cis‐diastereomers by addition of aryl‐ or alkenylboronates to N‐protected piperidinium ions derived from the corresponding 2‐methoxy‐3‐hydroxypiperidines.
ChemInform Abstract: Synthesis of Aryl(di)azinyl Ketones Through Copper‐ and Iron‐Catalyzed Oxidation of the Methylene Group of Aryl(di)azinylmethanes.
Authors: De Houwer Johan , Tehrani Kourosch Abbaspour , Maes Bert U. W. 
Published: June 2012

AbstractThe simple protocol includes Cu(II)‐ or Fe(II)‐catalysis with oxygen as the terminal oxidant.
ChemInform Abstract: Synthesis of N‐Substituted Carbonylamino‐1,2,3,6‐tetrahydropyridines as Potential Antiinflammatory Agents.
Authors: Ghaffari Mohammad A. , Ardley Tiffany W. , Gangapuram Madhavi , Redda Kinfe K. 
Published: June 2012

AbstractA series of novel tetrahydropyridinesis prepared following 2 slightly different synthetic strategies with pyridinium ylides (III) and (VII) as key intermediates.
ChemInform Abstract: Palladium‐Catalyzed Decarboxylative Coupling of Quinolinone‐3‐carboxylic Acids and Related Heterocyclic Carboxylic Acids with (Hetero)aryl Halides.
Authors: Messaoudi Samir , Brion Jean‐Daniel , Alami Mouad 
Published: June 2012

AbstractThe procedure can be applied to a broad spectrum of quinoline substrates and even extended to analogous systems such as (XII) and (XV).
ChemInform Abstract: A New Practical Approach Towards the Synthesis of Unsymmetric and Symmetric 1,10‐Phenanthroline Derivatives at Room Temperature.
Authors: Cheng Yongfeng , Han Xuesong , Ouyang Huangche , Rao Yu 
Published: June 2012

AbstractA new protocol for the synthesis of unsymmetric and symmetric 1,10‐phenanthroline derivatives (III) and (VII) is reported.
ChemInform Abstract: Concise Route to a Series of Novel 3‐(Tetrazol‐5‐yl)quinoxalin‐2(1H)‐ones.
Authors: Gunawan Steven , Nichol Gary , Hulme Christopher 
Published: June 2012

AbstractA three‐step sequence is developed for the synthesis of compounds (V) via Ugi‐azide multi‐component reaction, simultaneous N‐deprotection followed by intramolecular cyclization and oxidation.
ChemInform Abstract: Construction of Novel Tricyclic Fused‐Ring Systems by the Multicomponent Reactions of Imidazo[1,5‐a]pyridine Carbenes with Aromatic ortho‐Dialdehydes and Electron‐Deficient Alkynes.
Authors: Yan Cai‐Xia , Sun Zhong‐Xin , Cheng Ying 
Published: June 2012

AbstractThe process results in formation of diastereomeric mixtures of novel tricyclic azepine derivatives (IV) and (V).
ChemInform Abstract: Stereoselective Hydrogenation of Dibenzo‐18‐crown‐6 Catalyzed by Carbon Nanotube‐Supported Rhodium Nanoparticles.
Authors: Liu Hsin‐Wang , Pan Horng‐Bin , Tian Guo‐Xin , Chen Hsing‐Jung , Chiu Kong‐Hwa , Jen Jen‐Fon , Lo Jiun‐Guang , Wai Chien M. 
Published: June 2012

AbstractMultiwalled carbon nanotube‐supported Rh nanoparticles, prepared by a simple sonochemical method, are highly active for catalytic hydrogenation of dibenzo‐18‐crown‐6 to dicyclohexyl‐18‐crown‐6.
ChemInform Abstract: Palladium‐Catalyzed Regio‐ and Stereoselective Hydrosilylation of Electron‐Deficient Alkynes.
Authors: Sumida Yuto , Kato Tomoe , Yoshida Suguru , Hosoya Takamitsu 
Published: June 2012

AbstractVarious alkynes can be used as substrates for the title process.
ChemInform Abstract: Highly Efficient Hydrophosphonylation of Aldehydes and Unactivated Ketones Catalyzed by Methylene‐Linked Pyrrolyl Rare Earth Metal Amido Complexes.
Authors: Zhou Shuangliu , Wu Zhangshuan , Rong Jiewei , Wang Shaowu , Yang Gaosheng , Zhu Xiancui , Zhang Lijun 
Published: June 2012

AbstractNew dinuclear rare earth metal amido complex SAC bearing methylene‐linked pyrrolylamido ligands is effectively used for hydrophosphonylations of aromatic and aliphatic aldehydes (I) whereas, complex YPC gives better results for unactivated aliphatic, (hetero)aromatic ketones (IV).
ChemInform Abstract: Arbuzov‐Type Reaction of Acylphosphonites and N‐Alkoxycarbonylimine Cations Generated in situ with Trifluoroacetic Anhydride.
Authors: Dmitriev Maxim E. , Ragulin Valery V. 
Published: June 2012

AbstractThe use of biscarbamates as stable synthetic equivalents of unstable aldehydes renders possible a mild and efficient access to the target compounds, which represent N‐protected phosphinic α,α′‐pseudo dipeptides.
ChemInform Abstract: Synthesis and Biological Evaluation of Antitumor‐Active Arglabin Derivatives.
Authors: Csuk Rene , Heinold Anke , Siewert Bianka , Schwarz Stefan , Barthel Alexander , Kluge Ralph , Stroehl Dieter 
Published: June 2012

AbstractSome arglabin derivatives with variations at the endo‐ or exocyclic double bond are synthesized and screened for their cytotoxicity.
ChemInform Abstract: Cytotoxic Terpenoids from Juglans sinensis Leaves and Twigs.
Authors: Yang Heejung , Cho Hyun‐Jong , Sim So Hee , Chung Young Keun , Kim Dae‐Duk , Sung Sang Hyun , Kim Jinwoong , Kim Young Choong 
Published: June 2012

AbstractThree new triterpenes and two new sesquiterpenes (IV), (V) are identified.
ChemInform Abstract: Progress in the Synthesis of (‐)‐α‐Kainic Acid.
Authors: Choony Nandeo , James Lisa , Rabun Courtney 
Published: June 2012

AbstractStarting from L‐serine, the first steps of a contemplated stereocontrolled synthesis of (‐)‐α‐kainic acid are described leading to key intermediate (V) in enantiomerically pure form.
ChemInform Abstract: New Cyclic Peptides with Osteoblastic Proliferative Activity from Dianthus superbus.
Authors: Tong Yun , Luo Jian‐Guang , Wang Rui , Wang Xiao‐Bing , Kong Ling‐Yi 
Published: June 2012

AbstractDianthin G (I) and dianthin H (II) are isolated along with known dianthin E from the traditional Chinese medical plant Dianthus superbus.
ChemInform Abstract: Dehydrogenative Heck Coupling of Biologically Relevant N‐Heteroarenes with Alkenes: Discovery of Fluorescent Core Frameworks.
Authors: Huang Yumin , Song Feijie , Wang Zhen , Xi Peihua , Wu Ningjie , Wang Zhigang , Lan Jingbo , You Jingsong 
Published: June 2012

AbstractAn efficient Pd/Cu bimetallic catalyst system for the direct alkenylation of biologically relevant N‐heteroarenes (I), (IV), and (VI) with alkenes (II) is described.
ChemInform Abstract: A General Regioselective Approach to 2,4‐Disubstituted Pyrimidin‐5‐yl C‐2‐Deoxyribonucleosides.
Authors: Kubelka Tomas , Slavetinska Lenka , Hocek Michal 
Published: June 2012

AbstractA general strategy allows to synthesize a broad spectrum of title compounds via nucleophilic displacement of 2,4‐dichloropyrimidine nucleoside substrates as is demonstrated by some selected examples in the scheme.
ChemInform Abstract: Efficient Synthesis of 1‐Deaza‐6‐methoxypurine‐N9‐β‐2′‐deoxyribonucleoside and Related DNA Building Blocks.
Authors: Megger Dominik A. , Mueller Jens 
Published: June 2012

AbstractThe synthesis of title compound (III) is significantly improved by modifying the deprotection/substitution procedure.
ChemInform Abstract: Design, Synthesis of Some New (2‐Aminothiazol‐4‐yl)methylester Derivatives as Possible Antimicrobial and Antitubercular Agents.
Authors: Karuvalam Ranjith P. , Haridas Karickal R. , Nayak Susanta K. , Row Tayur N. Guru , Rajeesh P. , Rishikesan R. , Kumari N. Suchetha 
Published: June 2012

AbstractSeveral of the newly prepared thiazole derivatives, e.g. (Ia) and (Ib), show good antibacterial and significant antitubercular potency.
ChemInform Abstract: Silyl Glyoxylates. Conception and Realization of Flexible Conjunctive Reagents for Multicomponent Coupling.
Authors: Boyce Gregory R. , Greszler Stephen N. , Johnson Jeffrey S. , Linghi Xin , Malinowski Justin T. , Nicewicz David A. , Satterfield Andrew D. , Schmitt Daniel C. , Steward Kimberly M. 
Published: June 2012

AbstractReview: about 100 refs.
A gathering of neuronal cytoskeletal scientists in South America
Authors: Baas Peter W. , Gonzalez‐Billault Christian 
Published: June 2012

AbstractThis essay attempts to capture the spirit of our recent meeting in Chile entitled “Emerging Concepts in Neuronal Cytoskeleton.” The purpose of the meeting was to bring together scientists from South American countries with colleagues from the USA and the global community, to inspire and motivate the next generation of scientists from South America who share a fascination of the internal architecture of the neuron. © 2012 Wiley Periodicals, Inc
Principal Dynamical Components
Authors: de la Iglesia Manuel D. , Tabak Esteban G. 
Published: June 2012

AbstractA procedure is proposed for a dimension reduction in time series. Similarly to principal components, the procedure seeks a low‐dimensional manifold that minimizes information loss. Unlike principal components, however, the procedure involves dynamical considerations through the proposal of a predictive dynamical model in the reduced manifold. Hence the minimization of the uncertainty is not only over the choice of a reduced manifold, as in principal components, but also over the parameters of the dynamical model, as in autoregressive analysis and principal interaction patterns. Further generalizations are provided to nonautonomous and non‐Markovian scenarios, which are then applied to historical sea‐surface temperature data. © 2012 Wiley Periodicals, Inc.
Size‐Dependent Lattice Expansion in Nanoparticles: Reality or Anomaly?
Authors: Diehm P. Manuel , Ágoston Péter , Albe Karsten 
Published: June 2012

AbstractSize‐dependent lattice expansion of nanoparticles is observed for many ionic compounds, including metal oxides, while lattice contraction prevails for pure metals. However, the physical origin of this effect, which is of importance for the thermodynamic, chemical and electronic properties of nanoparticles, is discussed controversially. After a survey of the experimental literature, revealing a wide variety of materials with size‐dependent lattice expansion, we show that the negative surface stress is the key reason for lattice expansion, while the excess of lattice sums or point defects of various charge states can be excluded as general explanations. Ab initio calculations of surface stresses for various surface structures of metal oxides confirm the model of a surface‐induced lattice expansion.