A spectroscopic study of solvent effects on the formation of Cu(ii)–chloride complexes in aqueous solution

N. Zhang; J. Tang; Y. Ma; M. Liang; D. Zeng; G. Hefter

doi:10.1039/d0cp05243d

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A spectroscopic study of solvent effects on the formation of Cu(ii)–chloride complexes in aqueous solution

Journal article

Peer reviewed

A spectroscopic study of solvent effects on the formation of Cu(ii)–chloride complexes in aqueous solution

N. Zhang, J. Tang, Y. Ma, M. Liang, D. Zeng and G. Hefter

Physical Chemistry Chemical Physics, Vol.23(11), pp.6807-6814

2021

DOI: https://doi.org/10.1039/d0cp05243d

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Abstract

A combination of electronic (UV-vis) and X-ray absorption (EXAFS, XANES) spectroscopies has been used to investigate the formation of copper(II)/chloride complexes in concentrated aqueous solutions. It is established that lowering the water activity by the addition of Mg(ClO4)2 at a constant Cl−/Cu(II) ratio results in the replacement of water molecules by Cl− ions in the primary coordination shell of Cu(II). This behavior closely parallels the effect of increasing the Cl−/Cu(II) ratio and demonstrates that full understanding of the stoichiometry and structures of the complexes formed in concentrated metal-ion chloride solutions requires explicit consideration of the role of the solvent.

Details

Title: A spectroscopic study of solvent effects on the formation of Cu(ii)–chloride complexes in aqueous solution
Authors/Creators: N. Zhang (Author/Creator) - Central South University of Forestry and Technology
J. Tang (Author/Creator) - Central South University of Forestry and Technology
Y. Ma (Author/Creator) - National Center for Nanoscience and Technology
M. Liang (Author/Creator) - National Center for Nanoscience and Technology
D. Zeng (Author/Creator) - Central South University
G. Hefter (Author/Creator) - Murdoch University
Publication Details: Physical Chemistry Chemical Physics, Vol.23(11), pp.6807-6814
Publisher: Royal Society of Chemistry
Identifiers: 991005544254707891
Copyright: © 2021 Royal Society of Chemistry
Murdoch Affiliation: Chemistry and Physics
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.89 Ionic, Molecular & Complex Liquids; 2.89.677 Liquid Water
Web Of Science research areas: Chemistry, Physical; Physics, Atomic, Molecular & Chemical
ESI research areas: Chemistry