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TEMPERATURE DEPENDENCE OF SOME COBALT-SALTS/PEG SYSTEMS SPECTRA

G. Stanescu1,*

Affiliation

  1. Bucharest University, Faculty of Physics, POB MG-11, Bucharest, Magurele 077125, Romania

Abstract

UV-VIS absorption spectra of Cobalt Chloride (CoCl2) and Cobalt Bromide (CoBr2) in Poly(Ethylene Glycol) (PEG) were measured and analyzed at different temperatures. Five different PEG average molecular weights (chain lengths) have been used. Two pseudo tetrahedral Co-complexes have been identified. The formation of these complex-types is explained by studying the temperature behavior of such systems..

Keywords

UV-VIS spectroscopy, Co-complexes, poly(ethylene glycol).

Submitted at: Aug. 31, 2005
Accepted at: Nov. 24, 2005

Citation

G. Stanescu, TEMPERATURE DEPENDENCE OF SOME COBALT-SALTS/PEG SYSTEMS SPECTRA, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 6, pp. 3057-3062 (2005)