CRYSTAL-STRUCTURE OF BIS(BETAINE) HYDROCHLORIDE MONOHYDRATE

被引：49

作者：

CHEN, XM ^{[1
]}

MAK, TCW ^{[1
]}

机构：

[1] CHINESE UNIV HONG KONG,DEPT CHEM,SHA TIN,HONG KONG

来源：

JOURNAL OF MOLECULAR STRUCTURE | 1990年 / 240卷

关键词：

D O I：

10.1016/0022-2860(90)80497-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bis(betaine) hydrochloride monohydrate, 2Me3NCH2COO·HCI·H2O, crystallizes in space group Pnma (No. 62), with a=11.904(1), b=22.454(5), c=5.624(1) Å, and Z=4. The structure has been refined to RinF=0.046 for 863 observed (|Fo||>6σ|Fo|) Mo Kα data. the carboxylate groups of a pair of betaine molecules are bridged by a proton to form a centrosymmetric dimer featuring a very strong hydrogen bond of length 2.454(4) Å. The crystal structure comprises a packing of such [(Me3NCH2COO)2H]+ moieties and hydrogen-bonded (Cl-·H2O)∞ zigzag chains running parallel to the c axis. © 1990.

引用

页码：69 / 75

页数：7

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