Synthesis of chromium carbonyl complexes with molecular aryl polysilanes: Si[sbnd]Si bond rupture and formationстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 24 января 2020 г.
Аннотация:Interaction of organolithium reagent (η6-C6H5Li)Cr(CO)3 (1-Li) with ClSiMe2SiMe2Cl (2) resulted in [(OC)3Cr(η6-C6H5)]SiMe2SiMe2[(η6-C6H5)Cr(CO)3] (3), Me2Si[(η6-C6H5)Cr(CO)3]2 (4) and [(OC)3Cr(η6-C6H5)][SiMe2]4[(η6-C6H5)Cr(CO)3] (5); compounds 3 and 4 were isolated in preparative yields and fully characterized (multinuclear NMR, IR, UV/vis spectroscopy, mass spectrometry). The thermodynamics of this interaction was studied by DFT calculations, indicating several possible ways of synthesis of unexpected 4 and 5, which are obtained under rupture and formation of new Si[sbnd]Si bonds. The molecular structure of 3 was studied by single crystal XRD analysis.