A third monoclinic polymorph of 3,4,5-trihydroxybenzoic acid monohydrate

被引：12

作者：

Demirtas, Gunes ^{[1
]}

Dege, Necmi ^{[1
]}

Buyukgungor, Orhan ^{[1
]}

机构：

[1] Ondokuz Mayis Univ, Dept Phys, Arts & Sci Fac, TR-55139 Samsun, Turkey

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2011年 / 67卷

关键词：

D O I：

10.1107/S1600536811018848

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The title compound, C7H6O5 center dot H2O, is a new polymorph of the structures reported by Jiang et al. (2000) [Acta Cryst. C56, 594-595] and Okabe et al. (2001) [Acta Cryst. E57, o764-o766]. The gallic acid molecule is essentially planar (r.m.s. deviation = 0.550 A). An intramolecular O-H...O hydrogen bond occurs in the gallic acid molecule, which is linked to the water molecule by a further O-H...O hydrogen bond. In the crystal, the components are linked by O-H...O hydrogen bonds. The hydrogen-bonding pattern differs from those reported for the previous polymorphs.

引用

页码：O1509 / U1533

页数：10

共 10 条

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