STRUCTURE OF THE COMPLEX CYTOSINIUM HEMITETRACHLOROZINCATE-CYTOSINE

被引：33

作者：

FUJINAMI, F

OGAWA, K

ARAKAWA, Y

SHIROTAKE, S

FUJII, S

TOMITA, KI

机构：

来源：

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE CRYSTAL ENGINEERING AND MATERIALS | 1979年 / 35卷 / APR期

关键词：

D O I：

10.1107/S056774087900529X

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The crystallographic stucture of [C4H6N3O]1/2[ZnCl4].cntdot.C4H5N3O is as follows: monoclinic, C2/c, a = 7.054, b = 15.182, c = 23.756 .ANG., .beta. = 94.67, Z = 8. The structure was refined to give R = 0.075 for 1893 independent reflections. No direct coordination between the Zn atom and Cyt [cytosinium] or CytH+ molecules was observed. Two kinds of base pairing are formed alternately between Cyt and CytH+. Infinite H-bonded pyrimidine-pyrimidinium elongated ribbon-like sheets stack along the b axis with a separation of 3.26 .ANG.. The distorted-tetrahedral [ZnCl4]2- ion is fixed between the parallel sheets by N.sbd.H.cntdot..cntdot..cntdot.Cl and C.sbd.H.cntdot..cntdot..cntdot.Cl H bonds.

引用

页码：968 / 970

页数：3

共 8 条

[1]

HAMILTON WC, 1968, HYDROGEN BOND SOLIDS

[2] CRYSTAL STRUCTURE OF CYTOSINE MONOHYDRATE [J].