Comparison of pyridyl and pyridyl N-oxide groups as acceptor in hydrogen bonding with carboxylic acid
作者:Viswanadha G. Saraswatula、Mukhtar A. Bhat、Pradeep Kumar Gurunathan、Binoy K. Saha
DOI:10.1039/c3ce42449a
日期:——
N-oxide groups have been performed to find out which of these two groups is a better acceptor in hydrogen bonding with the carboxylic acid group. 4,4′-bipyridine N-monoxide, a rigid, conjugated, and linear molecule and 4,4′-trimethylenebipyridine N-monoxide, a flexible, non-conjugated between two aryl groups, and bent molecule, have been used to synthesize complexes with some carboxylic acid containing
吡啶基和吡啶基N-氧化物基团之间的竞争实验已经进行,以发现这两个基团中的哪一个在与羧酸基团的氢键键合中是更好的受体。4,4'-联吡啶N-一氧化物,一个刚性的,共轭的线性分子,以及4,4'-三亚甲基联吡啶N-一氧化物,一个柔性的,非共轭的两个芳基和弯曲分子,已用于合成配合物与一些含羧酸的化合物。研究表明,尽管吡啶基⋯酸合成物的存在比相应的吡啶基N-氧化物合成物的发生要多,但基于距离标准和能量计算,吡啶基N氧基合成酸比吡啶基⋯酸的合成力要强一些。 synthon。