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Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

Spectral and thermal studies of some chromium and molybdenum complexes with ONO donor Schiff bases.


PMID 16574469

Abstract

Reactions of M(CO)(6), where M=Cr and Mo with Schiff bases prepared by the condensation of ethanolamine with either acetylacetone or benzoylacetone were investigated. The reactions of Cr(CO)(6) in benzene resulted in the formation of the tricarbonyl drivatives [Cr(CO)(3)(HL)], HL=acaceaH or baceaH. The HL proved to act as a tridentate ligand. The corresponding reactions with Mo(CO)(6) in dioxane gave the oxo complexes [Mo(2)O(6)(HL)(2)] with HL was a bidentate. All prepared complexes were investigated using elemental analysis, IR, mass spectrometry, UV-vis absorption spectra and magnetic measurement. Thermal behaviors of the complexes were studied using by thermogravimetry (TG). Schemes for the thermal decomposition were proposed along with their mass fragmentation patterns.

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