Spectrometric Investigation of the Types of Forming [Fe2(CO)8]2- and [Fe3S(CO)9]2- ant Studies on Their Electronic Spectra and Electronic Structures

Abstract

Abstract: Three types of clusters were obtained from the reactions of Fe(CO)₅ with(Et₄N)₂MoS₄ in CH₃OH-CH₃ONa solution by using different reactant ratios and different concentrations of the base:(Ⅰ)[Et₄N]₂[Fe₂(CO)₈]、(Ⅱ)[Et₄N]₂[Fe₃S(CO)₉]、(Ⅲ)[Et₄N]₃[FeMo₂S₈O₂].Their crystalline structures,UV-VIS and IR spectra were measured.The electronic structures of the anions of (I) and (II) are studied by EHMO method and the analysis and assignment of their electronic spectra are made on the basis of the calculations.The relationship among the types of clusters formed in the three reactions and the change of reactant ratios and concentrations of the base are also studied.

Key words: Fe-CO Cluster, Types of forming cluster, Electronic spectra, Electronic Structure

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Niu Shuyun, Guo Chunxiao, Zhang Zhigui, Jin Zhenyan . Spectrometric Investigation of the Types of Forming [Fe₂(CO)₈]^2- and [Fe₃S(CO)₉]^2- ant Studies on Their Electronic Spectra and Electronic Structures[J]. Chem. J. Chinese Universities, 1990, 11(9): 977.

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Spectrometric Investigation of the Types of Forming [Fe₂(CO)₈]^2- and [Fe₃S(CO)₉]^2- ant Studies on Their Electronic Spectra and Electronic Structures

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