Anionic and neutral rhodium(I) complexes containing trichlorostannato ligands |
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| Affiliation: | 1. Key Laboratory for Colloid and Interface Chemistry (Ministry of Education), Shandong University, Jinan 250100, PR China;2. National Engineering Research Center for Colloidal Materials, Shandong University, Jinan 250100, PR China |
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| Abstract: | The complexes Et4N[Rh(SnCl3)2(diolefin)(PR3)] (diolefin = COD or NBD) have been isolated and their reactions studied. Reaction with arylic tertiary phosphines led to SnCl3− displacement and isolation of neutral pentacoordinated Rh(SnCl3)(diolefin)(PR3)2 complexes. Reaction with carbon monoxide involved diolefin displacement when the diolefin was COD, thus giving Et4N[Rh(SnCl3)2(CO)2(PR3)] compounds, but SnCl3− displacement when it was NBD, thus yielding Rh(SnCl3)(CO)(NBD)(PR3) complexes. The complexes [Rh(diolefin)Cl]2 were found to react with triarylphosphines in the presence of SnCl2 and with CO bubbling through the solution to give Rh(SnCl3)(CO)(NBD)(PR3) when the diolefin was NBD but Rh(Cl)(CO)(PR3)2 when the diolefin was COD. |
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