A new polymorph of 2,5-bis(4-pyridyl)-1,3,4-thiadiazole

被引：4

作者：

Zhao, XJ ^{[1
]}

Cai, H ^{[1
]}

Du, M ^{[1
]}

机构：

[1] Tianjin Normal Univ, Coll Chem & Life Sci, Tianjin 300074, Peoples R China

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2005年 / 61卷

关键词：

D O I：

10.1107/S1600536805022142

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

A new polymorph of 2,5-bis(4-pyridyl)-1,3,4-thiadiazole, C12H8N4S, obtained under hydrothermal conditions, is described. In this structure, the two terminal pyridyl groups are inclined to the central thiadiazole ring with dihedral angles of 6.47 (2) and 29.95 (5)degrees, and the dihedral angle between the pyridyl ring planes is 23.65 (6)degrees. An intermolecular C-H center dot center dot center dot N weak interaction is observed. The structural differences of two polymorphs of 2,5-bis(4-pyridyl)-1,3,4-thiadiazole are also discussed.

引用

页码：O2547 / O2548

页数：2