C-H•••O hydrogen bonds in imidazolium carboxylates

被引：6

作者：

Abu-Rayyana, Ahmed

Abu-Salem, Qutaiba ^{[1
]}

Kuhn, Norbert ^{[1
]}

Maichle-Moessmer, Cacilia ^{[1
]}

Mallah, Eyad ^{[1
]}

Steimann, Manfred ^{[1
]}

机构：

[1] Univ Tubingen, Inst Anorgan Chem, D-72076 Tubingen, Germany

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2008年 / 63卷 / 08期

关键词：

hydrogen bonds; crystal structure; imidazoles; heterocycles;

D O I：

10.1515/znb-2008-0816

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

2,3-Dihydro-1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (1) reacts with benzoic acid to give the corresponding 1,3-diisopropyl-4,5- dimethylimidazolium benzoate salt 2. Similarly, 1,3-diisopropyl-4,5-dimethylimidazolium formiate (3) is obtained from 1 and ammonium formiate. In crystals of 2, the anions are linked to the imidazolium ions by monofunctional O center dot center dot center dot H-C bonds while in 3 bifurcated O center dot center dot center dot H-C bonds are observed. In 1,3-diisopropyl-4,5-dimethylimidazolium hydrogenoxalate (4), obtained from 1 and oxalic acid, hydrogen bonds connect both imidazolium ions to the hydrogenoxalate ions in a bifurcated mode as well as the anions to each other.

引用

页码：1015 / 1019

页数：5

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