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  Home > JCE Print > Journal of Chemical Education > Issues > 1998  > January  >
In the Laboratory
The Ligand Field Spectra of Copper(II) Complexes
Anthony T. Baker
University of Technology, Sydney, Department of Chemistry, Broadway, NSW 2007, AUSTRALIA
Cover
January 1998
Vol. 75 No. 1
p. 98
Abstract
A practical exercise for introducing students to ligand field spectra and the spectrochemical series, through the study of copper(II) species, is presented. Incorporated in the exercise is the preparation of a simple coordination compound: diaquabis(ethylenediamine)copper(II) iodide. The position of maximum absorbance (lambdamax) for each of the spectra can be used to compare the field strengths of O- and N-donor ligands. The value of the absorbance at lambdamax can be used to derive a value of the molar absorptivity. The principal features of ligand field spectra are clearly demonstrated: the great breadth of the spectral bands, that the position of lambdamax is dependent on the nature of the ligands and the relatively low values of molar absorptivity.
More Information
*  Citation
 Baker, Anthony T. J. Chem. Educ. 1998 75 98.
*  Keywords
*  History
 Created:
Last Updated:		 June 28, 1999
June 23, 2005
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