Chemistry of N,N-Dimethylaminoalkylchalcogenolate Complexes of Palladium(II) and Platinum(II) |
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Authors: | Vimal K Jain |
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Institution: | 1. Novel Materials &2. Structural Chemistry Division, Bhabha Atomic Research Centre , Mumbai , India |
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Abstract: | Abstract Four different series of N,N-dimethylaminoalkylchalcogenolates, viz. Me2NCH2 CH2E?, Me2NCH(Me)CH2E?, Me2NCH2CH(Me)E?, and Me2NCH2CH2CH2E? (E = S, Se, Te), (referred as E∩N) have been synthesized and characterized. Their reactions with palladium(II) and platinum(II) precursors have been explored. Complexes of the general formula, MCl(E∩N)]n, MCl(E∩N)2]n, MCl(E∩N)(PR3)], M2Cl2(μ-E∩N)2(PR3)2], M2(μ-E∩N)2(P∩P)2]2+, etc. have been isolated. All the complexes have been characterized by elemental analysis, IR, NMR (1H, 13C, 31P, 77Se, 125Te, 195Pt), UV-vis, and FAB mass spectral data. A weak absorption in the electronic spectra of MCl(E∩N)(PR3)] has been attributed to metal mediated ligand-to-ligand charge transfer and showed pronounced chalcogen dependence being red shifted on moving from S → Se → Te. Structures of several complexes have been established by X-ray diffraction analyses. Thermal behavior of some of these complexes has been investigated by TGA. |
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Keywords: | NMR N N-dimethylaminoalkylchalcogenolates palladium platinum TGA |
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