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- W2050871861 abstract "The preparation of a series of new square-planar and half-sandwich type carbenerhodium(I) complexes will be described. The key to success is the use of the bis(stibane)rhodium compound trans-[RhCl(C2H4)(SbiPr3)2] as starting material from which in a stepwise manner the complexes trans-[RhCl(=CRR′)(SbiPr3)2] (L = PiPr3, AsiPr3, SbEt3) and [C5H5Rh(=CCR′)L] (L = SbiPr3, PiPr3, PMe3, CO, CNtBu) have been obtained. Displacement of the carbene ligand in either trans-[RhCl(=CPH2)L2]L = SbiPr3, PiPr3 or [C5H5Rh(=CPh2)(PiPr3)] by CO or CNtBu leads to the formation of the corresponding carbonyl- or isocyanidrhodium compounds and the CC coupling products Ph2C=C=O and Ph2C=C=NtBu, respectively. The carbene ligand is also involved in the selective formation of the isomeric olefins CH2=CHCPh2H and Ph2C=CHCH3 on treatment of trans-[RhCl(=CPh2)(SbiPr3)2] and trans-[RhCl(=CPh2)(PiPr3)2] with ethene. The most spectacular reaction of the bis(triisopropylstibane) complexes, however, occurs on warming of trans-[RhCl(=CRR′)(SbiPr3)2] in the absence of any substrate which yields the first representatives of dinuclear transition-metal compounds containing a tertiary stibane ligand in a bridging position. Some exploratory studies on the reactivity of the Rh2(μ-SbiPr3) complexes indicate that the triisopropylstibane can be replaced by SbMe3, SbEt3 or CNtBu without destroying the dimetallic core of the molecule." @default.
- W2050871861 created "2016-06-24" @default.
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- W2050871861 date "2010-08-12" @default.
- W2050871861 modified "2023-09-25" @default.
- W2050871861 title "ChemInform Abstract: Success and Serendipity During Studies Aimed at Preparing Carbenerhodium(I) Complexes" @default.
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- W2050871861 doi "https://doi.org/10.1002/chin.199608313" @default.
- W2050871861 hasPublicationYear "2010" @default.
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