pH-dependent displacement of [Bi(citrate)](-) with cysteine: Synthesis, spectroscopic and X-ray crystallographic characterization of Bi(cysteine)3

Yong-Jing Wang; Li Xu

doi:10.1016/j.jinorgbio.2008.01.004

pH-dependent displacement of [Bi(citrate)](-) with cysteine: Synthesis, spectroscopic and X-ray crystallographic characterization of Bi(cysteine)3

J Inorg Biochem. 2008 Apr;102(4):988-91. doi: 10.1016/j.jinorgbio.2008.01.004. Epub 2008 Jan 8.

Authors

Yong-Jing Wang¹, Li Xu

Affiliation

¹ State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, China. [email protected]

PMID: 18262279
DOI: 10.1016/j.jinorgbio.2008.01.004

Abstract

The compound Bi(cys)(3).H(2)O (cys=L-cysteine) has been obtained from the displacement reaction of [Bi(cit)](-) (cit=citrate) with cys in aqueous solution, and characterized by X-ray crystallography for the first time. It crystallizes in orthorhombic system with the space group P2(1)2(1)2(1), a=5.135(3)A, b=11.841(7)A, c=28.120(16)A, V=1709.8(17)A(3). The displacement reaction between bismuth citrate with cysteine in aqueous solution has been found to be pH-dependent and the complete displacement of the bound citrate with cysteine occurs at physiological pH value.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Crystallography, X-Ray
Cysteine / chemistry*
Hydrogen-Ion Concentration*
Magnetic Resonance Spectroscopy
Models, Molecular
Spectrophotometry, Ultraviolet

Substances

Cysteine