bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Ethynylation of 2‐(Furan‐2‐yl)‐ and 2‐(thiophen‐2‐yl)pyrroles with Acylbromoacetylenes in the Al2O3 Medium: Relative Reactivity of Heterocycles.
Authors: Sobenina Lyubov' N. , Petrova Ol'ga V. , Tomilin Denis N. , Gotsko Maxim D. , Ushakov Igor' A. , Klyba Lyudmila V. , Mikhaleva Al'bina I. , Trofimov Boris A. 
Published: April 2015

AbstractSimple grinding of the title substrates with Al2O3 results in highly selective ethynylation of the pyrrole rings.
ChemInform Abstract: TfOH‐Catalyzed Synthesis of 3‐Aryl Isoindolinones via a Tandem Reaction.
Authors: Hu Jiaxing , Qin Hua‐Li , Xu Wengang , Li Junli , Zhang Fanglin , Zheng Hua 
Published: April 2015

AbstractA series of 3‐aryl isoindolinones (III) and (V) is readily prepared by a Friedel—Crafts reaction of arenes with 2‐formylbenzonitriles and a subsequent ring closure.
ChemInform Abstract: A Facile Synthesis of (Carbazolyl)formamidines.
Authors: Meesala Ramu , Arshad Ahmad Saifuddin Mohamad , Mordi Mohd Nizam , Mansor Sharif Mahsufi 
Published: April 2015

AbstractA simple protocol for the reaction of (carbazolyl)acetamides with DMF to give the corresponding formamides as sufficiently pure materials without any purification is developed.
ChemInform Abstract: One‐Pot Synthesis of Polyfunctional Pyrazoles: An Easy Access to α‐Diazoketones from Arylglyoxal Monohydrates and Tosylhydrazine.
Authors: Shu Wen‐Ming , Ma Jun‐Rui , Zheng Kai‐Lu , Sun Hui‐Ying , Wang Mei , Yang Yan , Wu An‐Xin 
Published: April 2015

AbstractIntermediate formation of α‐diazoketones (II) from glyoxal monohydrates (I) and tosylhydrazine is applied in the one‐pot synthesis of 3‐acylpyrazoles (IV) and (VI) as well as benzo[f]indazolediones (VIII) or chromeno[3,4‐c]pyrazolones (XI).
ChemInform Abstract: Efficient Copper Catalyzed C—N Coupling Reaction in Water by Using 2‐Hydroxybenzohydrazides as Ligands.
Authors: Yan Nan‐Nan , Wu Feng‐Tian , Zhang Jie , Wei Qian‐Bing , Liu Ping , Xie Jian‐Wei , Dai Bin 
Published: April 2015

Abstract2‐Hydroxybenzohydrazides are efficiently applied as ligands in the copper‐catalyzed coupling of aryl iodides and bromides with a variety of N‐heterocycles as well as aniline and benzylamine (X).
ChemInform Abstract: 1,3‐Dipolar Cycloadditions. Part 28. Selective 1,3‐Dipolar Cycloadditions of C‐Aryl‐N‐Phenyl Nitrones to Arylidene Acetones.
Authors: Gosh Anindita , Banerji Avijit , Banerji Julie 
Published: April 2015

Abstractfurnishing 2,3,5‐triarylisoxazole derivatives (III) as a single diastereomer
ChemInform Abstract: Synthesis of Spiropyrrolidinyl‐Benzoisothiazoline Derivatives by 1,3‐Dipolar Cycloaddition of Benzoisothiazole‐2,2‐dioxide‐3‐ylidenes and Azomethine Ylide.
Authors: Cao Guorui , Long Feifei , Zhao Yingchun , Wang Yu , Huang Longjiang , Teng Dawei 
Published: April 2015

AbstractThe reaction proceeds well and diastereoselectively with Z‐configured 3‐arylidene‐ and simple alkylidene‐substituted benzoisothiazol‐S,S‐dioxides (I) and (IV).
ChemInform Abstract: Synthesis of Functionalized Chromones via Organocatalysis.
Authors: Wen Sai‐Shuai , Wang Jing , Luo Yi‐Ming , Yang Hua 
Published: April 2015

Abstract2‐mono‐ and 2,3‐disubstituted chromen‐4‐ones (II) (IV) are prepared from respective diketones (I) and (III) using pyrrolidine and novel N′′‐(4‐dodecylbenzenesulfonyl)proline hydrazide (PHB) as organocatalysts.
ChemInform Abstract: Synthesis of Fully‐Substituted Pyridines and Dihydropyridines in a Highly Chemoselective Manner Utilizing a Multicomponent Reaction (MCR) Strategy.
Authors: Sarkar Satavisha , Das Deb K. , Khan Abu T. 
Published: April 2015

AbstractA convenient one‐pot synthesis of fully substituted pyridine [cf.
ChemInform Abstract: Highly Diastereoselective Synthesis of Quinoline‐2,5‐diones and Pyrazolo[3,4‐b]pyridin‐6(7H)‐ones under Microwave Irradiation.
Authors: Jiang Bo , Liang Yan‐Bo , Kong Li‐Fang , Tu Xing‐Jun , Hao Wen‐Juan , Ye Qin , Tu Shu‐Jiang 
Published: April 2015

AbstractTitle compounds (IV) and (VI), resp., are synthesized using flexible three‐component reactions under microwave irradiation.
ChemInform Abstract: PEG1000‐Based Dicationic Acidic Ionic Liquid Catalyzed One‐Pot Synthesis of 1,4‐Dihydropyridines via the Hantzsch Reaction.
Authors: Ren Yi‐Ming , Shao Juan‐Juan , Wu Zhi‐Chuan , Xu Mao‐Dong 
Published: April 2015

AbstractThe catalyst can be reused nine times with excellent results.
ChemInform Abstract: One‐Pot Chemoselective Synthesis of Arylated Benzo[h]quinolines.
Authors: Singh Surjeet , Yadav Pratik , Sahu Satya Narayan , Sharone Ashoke , Kumar Brijesh , Ram Vishnu Ji , Pratap Ramendra 
Published: April 2015

AbstractThe reactions are performed under microwave irradiation as well as conventional heating with the latter delivering lower product yields.
ChemInform Abstract: One‐Pot, Three‐Component Synthesis of Novel Pyrroloacridinones via Intramolecular ipso Dearomatization—Intramolecular Aza‐Michael Addition Sequence.
Authors: Rozhkova Yuliya S. , Galata Kristina A. , Gorbunov Alexey A. , Shklyaev Yurii V. , Ezhikova Marina A. , Kodess Mikhail I. 
Published: April 2015

AbstractAn attempted conversion of 2,6‐di‐tert‐butylphenol yields the corresponding pyrroloacridinone in trace amounts only.
ChemInform Abstract: Mild Cu(I)‐Catalyzed Cascade Reaction of Cyclic Diaryliodoniums, Sodium Azide, and Alkynes: Efficient Synthesis of Triazolophenanthridines.
Authors: Liu Zhenquan , Zhu Daqian , Luo Bingling , Zhang Naiyuan , Liu Qi , Hu Yumin , Pi Rongbiao , Huang Peng , Wen Shijun 
Published: April 2015

AbstractAryl alkynes containing strongly electron‐withdrawing or strongly electron‐donating substituents provide low yields in comparison to other aryl or alkyl substituted alkynes.
ChemInform Abstract: One‐Pot Synthesis of 5H‐1,3,4‐Thiadiazolo[3,2‐a]pyrimidin‐5‐one Derivatives.
Authors: Dong Hong‐Ru , Gao Zhong‐Lian , Li Rong‐Shan , Hu Yi‐Ming , Dong Heng‐Shan , Xie Zhi‐Xiang 
Published: April 2015

AbstractThe title compounds (III) are obtained by reaction of 2‐aminothiadiazoles with cyanoacetate via a combination of [3+3] cycloaddition, reduction, and deamination reactions using diversity‐oriented catalysis.
ChemInform Abstract: A Convenient Palladium‐Catalyzed Carbonylative Synthesis of Quinazolines from 2‐Aminobenzylamine and Aryl Bromides.
Authors: Chen Jianbin , Natte Kishore , Neumann Helfried , Wu Xiao‐Feng 
Published: April 2015

AbstractThe first carbonylative protocol for the preparation of quinazoline derivatives (IV) (17 examples) is given.
ChemInform Abstract: Direct Synthesis of Boron‐Protected Alkenyl‐ and Alkylborons via Copper‐Catalyzed Formal Hydroboration of Alkynes and Alkenes.
Authors: Yoshida Hiroto , Takemoto Yuki , Takaki Ken 
Published: April 2015

AbstractA general Cu‐catalyzed method for the direct synthesis of organoboron compounds is developed using the stereoselective hydroboration of unsymmetrically mono‐ or disubstituted diboron compounds having a 1,8‐diaminonaphthalene protecting group.
ChemInform Abstract: Hydroboration of Arynes with N‐Heterocyclic Carbene Boranes.
Authors: Taniguchi Tsuyoshi , Curran Dennis P. 
Published: April 2015

AbstractAddition of NHC‐boranes to intermediate arynes proceeds with remarkable regioisomeric outcomes, especially, the formation of ortho products from arynes bearing electron‐withdrawing groups.
ChemInform Abstract: In situ Generation of Phosphoryl Alkylindiums and Their Synthetic Application to Arylalkyl Phosphonates via Palladium‐Catalyzed Cross‐Coupling Reactions.
Authors: Kim Sanghyuck , Kim Cheol‐Eui , Seo Boram , Lee Phil Ho 
Published: April 2015

AbstractDiethyl bromoalkylphosphonates are coupled with a broad variety of aryl iodides via intermediate alkylindium species to give the corresponding arylalkylphosphonates in moderate to good yields.
ChemInform Abstract: Multicomponent Reactions of Phosphines, Diynedioates, and Aryl Aldehydes Generated Furans Appending Reactive Phosphorus Ylides Through Cumulated Trienoates as Key Intermediates: A Phosphine α‐Addition‐δ‐Evolvement of an Anion Pathway.
Authors: Deng Jie‐Cheng , Chuang Shih‐Ching 
Published: April 2015

AbstractThe title synthesis of furans involves an initial novel α(δ′)‐addition of phosphines to diynedioates followed by addition reaction of the resulting trienoates to aldehydes and subsequent 5‐endo‐dig cyclization.
ChemInform Abstract: Holophyllin A, a Rearranged Abietane‐Type Diterpenoid from the Trunk of Abies holophylla.
Authors: Kim Chung Sub , Shin Bora , Kwon Oh Wook , Kim Sun Yeou , Choi Sang Un , Oh Dong‐Chan , Kim Ki Hyun , Lee Kang Ro 
Published: April 2015

AbstractHolophyllin A (I) and the new diterpene glycoside homophyllin B (II) are isolated from the trunk of Abies holophylla.
ChemInform Abstract: Catalytic Asymmetric Functionalization of Aromatic C—H Bonds by Electrophilic Trapping of Metal‐Carbene‐Induced Zwitterionic Intermediates.
Authors: Jia Shikun , Xing Dong , Zhang Dan , Hu Wenhao 
Published: April 2015

AbstractThe rhodium‐catalyzed three‐component reaction between N,N‐disubstituted anilines, α‐diazoarylacetic esters and diarylimines in the presence of (R)‐BINOL‐derived phosphoric acid ligand TBP gives compounds with quaternary stereocenters in good yield with high diastereo‐ and enantioselectivities.
ChemInform Abstract: Amycomycins C and D, New Angucyclines from Kitasatospora sp.
Authors: Broetz Elke , Bilyk Oksana , Kroeger Stephanie , Paululat Thomas , Bechthold Andreas , Luzhetskyy Andriy 
Published: April 2015

AbstractThe isolation of amycomycins C (Ia) and D (Ib) and the preparation of monoglycosylated alizarin (II) as well as the evaluation of all three compounds against gram‐positive and gram‐negative bacteria is described.
ChemInform Abstract: The Asymmetric Syntheses of Pyrrolizidines, Indolizidines and Quinolizidines via Two Sequential Tandem Ring‐Closure/N‐Debenzylation Processes.
Authors: Davies Stephen G. , Fletcher Ai M. , Foster Emma M. , Houlsby Ian T. T. , Roberts Paul M. , Schofield Thomas M. , Thomson James E. 
Published: April 2015

AbstractEight‐step syntheses of (‐)‐lupinine (Ia), (+)‐isoretronecanol (Ib), (+)‐5‐epi‐tashiromine (Ic) and (R,R)‐1‐(hydroxymethyl)octahydroindolizine (Id), which is part of stelletamides A‐C, are described.
ChemInform Abstract: Structural Revision and Absolute Configuration of Lateritin.
Authors: Ola Antonius R. B. , Aly Amal H. , Lin Wenhan , Wray Victor , Debbab Abdessamad 
Published: April 2015

AbstractThe structure of previously reported lateritin with hitherto unknown absolute configuration is established to be identical with beauvericin (I), a trimeric lactone of lateritin.
ChemInform Abstract: Total Synthesis of Plagiochin G and Derivatives as Potential Cancer Chemopreventive Agents.
Authors: Li Rui‐Juan , Zhao Yu , Tokuda Harukuni , Yang Xiao‐Ming , Wang Yue‐Hu , Shi Qian , Morris‐Natschke Susan L. , Lou Hong‐Xiang , Lee Kuo‐Hsiung 
Published: April 2015

AbstractThe synthesis of plagiochin G (Ia) and four ester derivatives is presented.
ChemInform Abstract: Recent Applications of Chiral N‐tert‐Butanesulfinyl Imines, Chiral Diene Ligands and Chiral Sulfur‐Olefin Ligands in Asymmetric Synthesis
Authors: Dong Han‐Qing , Xu Ming‐Hua , Feng Chen‐Guo , Sun Xing‐Wen , Lin Guo‐Qiang 
Published: April 2015

AbstractReview: 104 refs.
ChemInform Abstract: Development of New Methods in Modern Selective Organic Synthesis: Preparation of Functionalized Molecules with Atomic Precision
Authors: Ananikov V. P. , Khemchyan L. L. , Ivanova Yu V. , Bukhtiyarov V. I. , Malykhin V. V. , Bukhtiyarova G. A. , Terent'ev A. O. , Krylov I. B. 
Published: April 2015

AbstractReview: 840 refs.
ChemInform Abstract: Functional Materials from Cellulose‐Derived Liquid‐Crystal Templates
Authors: Giese Michael , Blusch Lina K. , Khan Mostofa K. , MacLachlan Mark J. 
Published: April 2015

AbstractReview: [materials templated by cellulose nanocrystals, and their use in various optical applications such as optical filters, sensors, and optoelectronics; 131 refs.
ChemInform Abstract: Computational Studies of Atmospherically‐Relevant Chemical Reactions in Water Clusters and on Liquid Water and Ice Surfaces
Authors: Gerber R. Benny , Varner Mychel E. , Hammerich Audrey D. , Riikonen Sampsa , Murdachaew Garold , Shemesh Dorit , Finlayson‐Pitts Barbara J. 
Published: April 2015

AbstractReview: 53 refs.
A lightweight middleware framework for vehicle networking application
Authors: Jiang Jianchun , Zeng Suhua , Jing Yanmei , Wang Kailong 
Published: April 2015

SummaryThere is a growing need for Vehicle Networking Applications (VNAs) development that does not require users to learn the details of VNA data processing and message transfer. VNAs have some special requirements differing from other general‐purpose applications, such as real‐time performance, extensibility, compatibility, and reusability. To meet with these requirements of the VNAs, we propose a lightweight middleware framework for VNAs in this article. In the middle framework, we design multi‐layer middleware architecture to separate VNAs from the software platform and to improve the adaptability for the heterogeneous network and various vehicle networking communication protocols. Meanwhile, the middleware architecture consists of fixed and exchangeable modules to improve the middleware reusability. And the component bus is presented in a framework to standardize component interfaces to improve the extensibility of middleware. The framework has an efficient and simple structure to guarantee the real‐time performance of data processing and message transferring. This middleware also provides a uniform communication mechanism to be compatible with other existing middleware. In this article, we describe the design ideas and the composition of each module in the middleware framework, and analyze the data flow in communication process. We also develop the middleware prototypes to verify the feasibility of the middleware framework. Copyright © 2015 John Wiley & Sons, Ltd.
Light‐Driven Reversible Alignment Switching of Liquid Crystals Enabled by Azo Thiol Grafted Gold Nanoparticles
Authors: Xue Chenming , Xiang Jie , Nemati Hossein , Bisoyi Hari Krishna , Gutierrez‐Cuevas Karla , Wang Ling , Gao Min , Zhou Shuang , Yang Deng‐ke , Lavrentovich Oleg D. , Urbas Augustine , Li Quan 
Published: April 2015

AbstractStimuli‐directed alignment control of liquid crystals (LCs) with desired molecular orientation is currently in the limelight for the development of smart functional materials and devices. Here, photoresponsive azo thiol (AzoSH) was grafted onto gold nanoparticles (GNPs). The resulting hybrid GNPs were able to homogeneously mix with a commercially available nematic LC host, as evidenced by Cryo‐TEM. Interestingly, the LC nanocomposites were found to undergo reversible alignment transition upon light irradiation as a consequence of the trans–cis photoisomerization of the azo groups on the GNP surface. LC molecules in either planar or bare glass cells were able to change their alignment to vertical upon UV irradiation, while the vertically aligned LC molecules returned to the planar or random orientation under visible irradiation. Neither the azo thiol molecules nor the unfunctionalized GNPs alone promoted the alignment of the LC molecules in the system upon light irradiation. The photoinduced vertical alignment without applied electric or magnetic field was very stable over time and with respect to temperature. Furthermore, an optically switchable device based on the photostimulated reversible alignment control of LCs was demonstrated.
Pediatric loss of control eating syndrome: Association with attention‐deficit/hyperactivity disorder and impulsivity
Authors: Reinblatt Shauna P. , Mahone E. Mark , Tanofsky‐Kraff Marian , Lee‐Winn Angela E. , Yenokyan Gayane , Leoutsakos Jeannie‐Marie S. , Moran Timothy H. , Guarda Angela S. , Riddle Mark A. 
Published: April 2015

ABSTRACTObjectiveDespite data linking Attention‐deficit/Hyperactivity Disorder (ADHD) and adult binge eating, there are limited data in children with loss of control (LOC) eating. We examined inhibitory control in children with LOC eating syndrome (LOC‐ES) and its association with ADHD.Method79 children (8–14 years) over the fifth weight percentile were recruited, irrespective of LOC eating or ADHD status. The Eating Disorder Examination for Children and the Standard Pediatric Eating Episode Interview assessed LOC‐ES. ADHD diagnosis was determined by the Schedule for Affective Disorders and Schizophrenia for children and Conners‐3 (Parent Report) DSM‐IV Scales of Inattention and/or Hyperactivity (T score>65). The Go/No‐Go (GNG) Task and the Behavior Regulation Inventory of Executive Function (BRIEF) assessed impulse control.ResultsOdds of LOC‐ES were increased 12 times for children with ADHD (adjusted odds ratio [aOR] = 12.68, 95% confidence interval [CI] = 3.11, 51.64, p < 0.001), after adjusting for BMI z scores and relevant covariates. Children had 1.17 times higher odds of reporting LOC‐ES with every 5% increase in GNG Commission Rate (aOR = 1.17, CI = 1.01, 1.36, p < 0.05) and 1.25 times higher odds of reporting LOC‐ES with every 5 unit T‐score increase in BRIEF Inhibit Scale (aOR = 1.25, CI = 1.04, 1.50, p < 0.05).DiscussionChildren with ADHD had significantly greater odds of LOC‐ES compared to children without ADHD. Children with LOC‐ES had significantly greater impulse control deficits on performance‐based neuropsychological assessments and on parent reports than children without LOC‐ES. These findings suggest a need to investigate possible shared mechanisms such as impulse control deficits, among children with LOC‐ES and ADHD. © 2015 Wiley Periodicals, Inc (Int J Eat Disord 2015; 48:580–588)
Identification of ungulates used in a traditional Chinese medicine with DNA barcoding technology
Authors: Chen Jing , Jiang Zhigang , Li Chunlin , Ping Xiaoge , Cui Shaopeng , Tang Songhua , Chu Hongjun , Liu Binwan 
Published: April 2015

AbstractHorns of Saiga antelope (Saiga tatarica) have always been an ingredient of “Lingyangjiao”, a traditional Chinese medicine (TCM). Persistent hunting for Saiga antelope has already threatened the survival of critical endangered populations in wild. To control the growing pressure, CITES and Chinese government have legislated for monitoring the trade of Saiga horns. However, similar ungulate horns are difficult to identify by their morphological characteristics, which has impeded the law enforcement. Besides Saiga antelope, other seven ungulate species which have similar horns are also sold and marked as “Lingyangjiao” in TCM markets to offset shortage of Saiga antelope horns. Such species are Gazella subgutturosa, Pantholops hodgsonii, Procapra picticaudata, Procapra gutturosa, Procapra przewalskii, Capra hircus, and Ovis aries. Our study aimed at implementing DNA barcoding technology to diagnose Saiga horns and the substitutes. We successfully extracted genomic DNA from horn samples. We recovered COI sequences of 644 bp with specific primers and 349 bp with nested PCR primers designed for degraded horn samples. The mean interspecific genetic distance of data set of the 644‐bp full barcodes and the 349‐bp mini‐barcodes was 14.96% and 15.38%, respectively, and the mean intraspecific distance was 0.24% and 0.20%, respectively. Each species formed independent clades in neighbor‐joining (NJ) phylogenetic tree of the two data sets with >99% supporting values, except P. gutturosa and P. przewalskii. The deep genetic distances gap and clear species clades in NJ tree of either full barcodes or mini‐barcodes suggest that barcoding technology is an effective tool to diagnose Saiga horns and their substitutes. Barcoding diagnosis protocol developed here will simplify diagnosis of “Lingyangjiao” species and will facilitate conservation of endangered ungulates involved in TCM “Lingyangjiao” markets, especially the Saiga antelope.
Condition, not eyespan, predicts contest outcome in female stalk‐eyed flies, Teleopsis dalmanni
Authors: Bath Eleanor , Wigby Stuart , Vincent Claire , Tobias Joseph A. , Seddon Nathalie 
Published: April 2015

AbstractIn contests among males, body condition is often the key determinant of a successful outcome, with fighting ability signaled by so‐called armaments, that is, exaggerated, condition‐dependent traits. However, it is not known whether condition and exaggerated traits function in the same way in females. Here, we manipulated adult condition by varying larval nutrition in the stalk‐eyed fly, Teleopsis dalmanni, a species in which eyespan is exaggerated in both sexes, and we measured the outcome of contests between females of similar or different body condition and relative eyespan. We found that females in higher condition, with both larger bodies and eyespan, won a higher proportion of encounters when competing against rivals of lower condition. However, when females were of equal condition, neither eyespan nor body length had an effect on the outcome of a contest. An analysis of previously published data revealed a similar pattern in males: individuals with large relative eyespan did not win significantly more encounters when competing with individuals of a similar body size. Contrary to expectations, and to previous findings in males, there was no clear effect of differences in body size or eyespan affecting contest duration in females. Taken together, our findings suggest that although eyespan can provide an honest indicator of condition, large eyespans provide no additional benefit to either sex in intrasexual aggressive encounters; body size is instead the most important factor.
Hindrance, Donor Ability of Men∩NN Chelates and Overall Stability of Pentacoordinate [PtCl2(η2‐CH2=CH2)(Men∩NN)] Complexes as Observed by η2‐Olefin 1JPt,C Modulation: An NMR Study
Authors: Benedetti Michele , Antonucci Daniela , Girelli Chiara R. , Fanizzi Francesco P. 
Published: April 2015

AbstractA series of pentacoordinate d8 PtII complexes, of the type [PtCl2(η2‐CH2=CH2)(Men∩NN)], where Men∩NN = bis‐nitrogen ligand, with a variable number of Me groups (i.e., 2,2′‐bipyridyl; 1,10‐phenanthroline; 6‐methyl‐2,2′‐bipyridyl; 2,9‐dimethyl‐1,10‐phenanthroline; 2,9‐dimethyl‐1,10‐phenanthroline; N,N′‐trimethyl‐ethylenediamine; N,N,N′,N′‐tetramethyl‐ethylenediamine; N,N,N′,N′‐tetramethyl‐1,2‐diaminocyclohexane) was studied. The compounds are characterized by variable steric hindrance, due to the variable number (n) of Me substituents, on or ortho to the N‐donors of aliphatic diamines or aromatic diimines, respectively. This approach was developed to investigate the interaction of substituents with the metal coordination sphere. With this aim, we analyzed the NMR properties of the considered complexes, with respect to modulation of the metal electron density (195Pt NMR signal frequency) by alkyl groups close to the N‐donors. 1H and 13C NMR analysis of the η2‐olefin signals has revealed, for each kind of bis‐nitrogen ligand, a positive or negative chemical shift variation that is proportional to the number of Me groups geminal or vicinal to the N‐donors. Interestingly, the 1JPt,C values increase by approximately 45 Hz for each additional Me on the series of diamine or diimine bis‐nitrogen ligands. A rationale for the stability changes observed in such pentacoordinate complexes is suggested, based on the NMR spectroscopic data analysis.
„Was den studenten aus meinem kram taugt”︁
Authors: Martus Steffen 
Published: April 2015

AbstractFür Jacob und Wilhelm Grimm war Wissenschaft in Forschung und Lehre eine Lebensform, die auch hochpolitisch sein konnte. Deshalb schlossen sich die Brüder als Professoren 1837 dem Protest der „Göttinger Sieben„ an — und riskierten dafür sogar Entlassung und Verbannung.