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An Infrared Spectroscopic Study of Crystalline Copper (II) Propionate and Butyrate

1994; Taylor & Francis; Volume: 27; Issue: 10 Linguagem: Inglês

10.1080/00387019408003245

1532-2289

Maria F. Ramos Moita, M.L. Duarte, Rui Fausto,

Chemical Thermodynamics and Molecular Structure

Abstract Abstract: The vibrational spectra of crystalline anhydrous copper (II) propionate and butyrate were studied by FT-IR spectroscopy. A detailed assignment of the spectra of both compounds is presented and discussed. It is shown that the presence of two non-equivalent sets of carboxylate ligands within the crystals gives rise to several band splittings, which are particularly evident in those bands ascribable to normal modes involving predominantly the -CβH3 or -CβH2-fragments. In addition, the vibrational assignments made for the studied molecules are shown to be very useful to help understanding the much more complex spectra of long chain copper carboxylates.