Evidence for discrete Cd(SCys)4 units in cadmium phytochelatin complexes from EXAFS spectroscopy
- 1 January 1991
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 16,p. 1129-1130
- https://doi.org/10.1039/c39910001129
Abstract
The principal structural features of multinuclear complexes of cadmium(II) with the plant-peptide phytochelatin have been deduced from Cd-EXAFS (EXAFS = extended X-ray absorption fine structure) data: (i) Cd(SCys)4 coordination, (ii) in contrast to Cd-metallothioneins, no formation of cadmium ‘clusters’ and (iii) non-coordinating carboxylate groups.Keywords
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