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aromatic amide Polymers that Form Two Helical Conformations with Twist Sense Bias in Water

Chinese Journal of Chemistry 2016年第7期34卷 678-682页

作者： Peng Zhang Zekun Wang Liang Zhang Hui Wang Danwei Zhang Junli Hou Zhanting Li Department of Chemistry Collaborative Innovation Centre of Chemistry for Energy Materials ( iChEM) Fudan University Shanghai 200433 China

Two benzene/2,2＇-bipyridine-alternately incorporated amide polymers have been prepared, which are driven by hydrophobicity to form two different helical conformations. Both helices exhibit twist sense bias in water i... 详细信息

关键词： foldamer twist sense bias helix aromatic amide polymer

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Rapid and efficient synthesis of new chiral aromatic amide molecular tweezers under solvent-free conditions using microwave

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Chinese Chemical Letters 2009年第4期20卷 397-400页

作者： Xiao Xiang Zhao Zhi Gang Zhao Xing Li Liu Xiu Ming Wu College of Chemistry and Environmental Protection Engineering Southwest University for Nationalities Chengdu 610041 China

An efficient and simple method for the synthesis of new chiral aromatic amide molecular tweezers by irradiation with microwave under solvent-free conditions has been developed. Its main advantages are short reaction t... 详细信息

关键词： Molecular tweezer aromatic amide Microwave irradiation Molecular recognition

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Synthesis, Crystal Structure of the Receptor Derived from Diethoxycarbonyl Glycoluril for aromatic amide Guest

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Chinese Journal of Chemistry 2014年第11期32卷 1111-1115页

作者： Baohan Zhou Baoming Xu Li Ma Meixi Wang Kun Chen Yanguo Chen School of Chemistry and Chemical Engineering Light Industry DivisionHubei University of TechnologyWuhanHubei 430068China

The receptor derived from the diethoxycarbonyl glycoluril was synthesized and characterized by IR,^(1)H NMR,MS techniques and X-ray single crystal *** crystal X-ray diffraction reveals that the receptor remains monomeric because of its bulky t-Bu groups on the side *** unique binding properties for aromatic amides were studied through ^(1)H NMR and IR techniques.

关键词： receptor aromatic amide binding properties crystal structure

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N-H…X(X=F,Cl,Br,and Ⅰ)hydrogen bonding in aromatic amide derivatives in crystal structures

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Science China Chemistry 2012年第10期55卷 2018-2026页

作者： WANG DongYun WANG JiLiang ZHANG DanWei LI ZhanTing Department of Chemistry Fudan UniversityShanghai 200433China

Intramolecular N H···X (X=F, Cl, Br, and Ⅰ) hydrogen bonding patterns of aromatic amides in the solid state are summarized. It is revealed that the key for the formation of this kind of weak intramolecular hydrogen bonding in X-ray crystal structures is to suppress the competition of strong intermolecular N H···O C hydrogen bonding of the amide unit. For amides with identical backbones, the bonding capacity of halogen atoms as hydrogen bonding acceptors is in the order of F>Cl>Br>I, which is in accordance with their electronegativity strength. Generally, the five-membered hydrogen bonding is easier to form than the six-membered one.

关键词： hydrogen bond halogen acceptor aromatic amide X-ray crystallography

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N-H…X(X = F,Cl,Br,and I) hydrogen bonding in aromatic amide derivatives in crystal structures

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中国科学:化学 2012年第10期42卷 1489-1489页

作者： WANG DongYun,WANG JiLiang,ZHANG DanWei* & LI ZhanTing* Department of Chemistry,Fudan University,Shanghai 200433,China Department of Chemistry Fudan University Shanghai 200433 China

Intramolecular N-H···X(X = F,Cl,Br,and I) hydrogen bonding patterns of aromatic amides in the solid state are *** is revealed that the key for the formation of this kind of weak intramolecular hydrogen bonding in X-ray crystal structures is to suppress the competition of strong intermolecular N-H···O-C hydrogen bonding of the amide *** amides with identical backbones,the bonding capacity of halogen atoms as hydrogen bonding acceptors is in the order of F>Cl>Br>I,which is in accordance with their electronegativity ***,the five-membered hydrogen bonding is easier to form than the six-membered one.

关键词： hydrogen bond halogen acceptor aromatic amide X-ray crystallography

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