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Crystal Structure and Electronic Spectrum of the Distorted Tetrahedral CuCl42- Ion in Bis(2-aminopyridinium) Tetrachlorocuprate(II) and Comparison With the Tetragonally Elongated Octahedral Complex Bis(2-aminopyrimidinium)tetrachlorocopper(II)

Citation

Boutchard, CL and Hitchman, MA and Skelton, BW and White, AH, Crystal Structure and Electronic Spectrum of the Distorted Tetrahedral CuCl42- Ion in Bis(2-aminopyridinium) Tetrachlorocuprate(II) and Comparison With the Tetragonally Elongated Octahedral Complex Bis(2-aminopyrimidinium)tetrachlorocopper(II), Australian Journal of Chemistry, 48, (4) pp. 771-781. ISSN 0004-9425 (1995) [Refereed Article]

DOI: doi:10.1071/CH9950771

Abstract

The crystal structure of bis(2-aminopyridinum) tetrachlorocuprate (II) has been determined by single-crystal X-ray diffraction. The triclinic unit cell, space group Pī, contains a single formula unit in the asymmetric unit. The CuCl42- ions occur as isolated groups having a highly flattened tetrahedral geometry. The chloride ions are hydrogen-bonded to both nitrogen atoms of the cation, and the influence of this upon the geometry of the copper(II) complex is discussed. The low-temperature single-crystal electronic spectrum of the compound is reported, and the intensities and energies of the d-d transitions are related to the degree of distortion of the CuCl42- ion. The electronic spectrum of a crystal of bis (2-aminopyrimidinium) tetrachlorocopper (II), which contains a tetragonally elongated octahedral complex in which the cation forms long axial bonds to the copper(II) ion, was also measured for comparison. Angular overlap metal-ligand bonding parameters are derived for the two compounds, and discussed in terms of the different geometries of the complexes. © 1995 ASEG.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Inorganic Chemistry
Research Field:Transition Metal Chemistry
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Boutchard, CL ( Boutchard)
Author:Hitchman, MA (Dr Michael Hitchman)
ID Code:3629
Year Published:1995
Web of Science® Times Cited:6
Deposited By:Chemistry
Deposited On:1995-08-01
Last Modified:2011-08-22
Downloads:0

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