Imidazole-4-acetic acid-picric acid (1/1) complex

被引：59

作者：

In, Y ^{[1
]}

Nagata, H ^{[1
]}

Doi, M ^{[1
]}

Ishida, T ^{[1
]}

Wakahara, A ^{[1
]}

机构：

[1] FUJISAWA PHARMACEUT CO LTD,YODOGAWA KU,OSAKA 532,JAPAN

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1997年 / 53卷

关键词：

D O I：

10.1107/S0108270196012899

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In the crystal structure of 4-(carboxymethyl)imidazol 3-ium picrate, C5H7N2O2+.C6H2N3O7-, the imidazole N3 atom is protonated and contacts the deprotonated phenol and nitro O atoms of the picrate anion through a bifurcated hydrogen bond. The carboxy group of the 4-(carboxymethyl)imidazolium cation is in a neutral state and participates in dimer formation between centrosymmetrically related molecules through O ... H-O hydrogen bonds. No significant stacking interaction is observed between the aromatic rings of the two molecules, indicating the superiority of the hydrogen-bonding ability of imidazole-4-acetic acid over the pi-donating ability of picric acid.

引用

页码：367 / 369

页数：3

共 10 条

[1]

Debaerdemaeker T, 1987, MULTAN87 SYSTEM COMP

[2]

FUJII S, 1979, MOLCON UNIVERSAL CRY, P66

[3]

ISHIDA T, 1993, CHEM PHARM BULL, V41, P433

[4] STRUCTURE OF 5-HYDROXYINDOLE-3-ACETIC ACID [J].

ISHIDA, T ;

HAMADA, M ;

INOUE, M ;

WAKAHARA, A .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1990, 46 :2426-2428

[5]

Johnson C. K., 1976, ORNL5138

[6]

*MOL STRUCT CORP, 1992, TEXSAN SINGL CRYST S

[7] Structural features of four tryptophan metabolite-picric acid molecular complexes [J].

Nagata, H ;

In, Y ;

Doi, M ;

Ishida, T ;

Wakahara, A .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS, 1995, 51 :1051-1058

[8]

NAGATA H, 1995, CHEM PHARM BULL, V43, P1836

[9]

SHELDRICK GM, 1993, SHELXL93 PROGRAM REF

[10] STRUCTURE OF THE COMPLEX OF IMIDAZOLE AND PICRIC ACID [J].

SORIANOGARCIA, M ;

SCHATZLEVINE, M ;

TOSCANO, RA ;

IRIBE, RV .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1990, 46 :1556-1558

← 1 →