Cooperative assistance in a very short O-H•••O hydrogen bond.: Low-temperature X-ray crystal structures of 2,3,5,6-pyrazinetetracarboxylic and related acids

被引：38

作者：

Vishweshwar, P

Nangia, A ^{[1
]}

Lynch, VM

机构：

[1] Univ Hyderabad, Sch Chem, Hyderabad 500046, Andhra Pradesh, India

[2] Univ Texas, Dept Chem & Biochem, Austin, TX 78712 USA

来源：

CHEMICAL COMMUNICATIONS | 2001年 / 02期

关键词：

D O I：

10.1039/b007346f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In contrast to the well documented role of charge- and resonance-assistance in very short hydrogen bonds, a very short O-H-acid. . .O-water hydrogen bond [O . . .O 2.4791(13) Angstrom] in the title acid is ascribed to the cumulative stabilisation from sigma- and pi -bond cooperativity.

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页码：179 / 180

页数：2

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