L-Cysteinium⋯L-Cysteine Phosphite

期刊论文
发表日期：

2024年6月1日

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V. V. Ghazaryan,
G. Giester,
V. S. Minkov,
E. V. Boldyreva,
A. M. Petrosyan

摘要

Abstract

In the system L-cysteine-H₃PO₃–H₂O, a new salt with a dimeric cation, (L-CysH⋯L-Cys)(H₂PO₃), has been obtained. The compound exhibits incongruent solubility and is synthesized using an equimolar ratio of L-cysteine and phosphorous acid. It crystallizes in the orthorhombic space group P2₁2₁2₁. The dimeric (L-CysH⋯L-Cys) cation is formed due to a strong O–H⋯O hydrogen bond with an O⋯O distance of 2.498(2) Å. Phosphite anions in the structure are linked to infinite chains. An IR spectrum is recorded and discussed based on its structure.