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Supported cyclopentadienylmetal carbonyl complexes : III. Silica-gel-supported iron and cobalt derivatives

Supported cyclopentadienylmetal carbonyl complexes : III. Silica-gel-supported iron and cobalt derivatives

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WILD, Ferdinand R. W. P., Guiseppe GUBITOSA, Hans-Herbert BRINTZINGER, 1978. Supported cyclopentadienylmetal carbonyl complexes : III. Silica-gel-supported iron and cobalt derivatives. In: Journal of Organometallic Chemistry. 148(1), pp. 73-80. ISSN 0022-328X

@article{Wild1978Suppo-23911, title={Supported cyclopentadienylmetal carbonyl complexes : III. Silica-gel-supported iron and cobalt derivatives}, year={1978}, doi={10.1016/S0022-328X(00)90952-5}, number={1}, volume={148}, issn={0022-328X}, journal={Journal of Organometallic Chemistry}, pages={73--80}, author={Wild, Ferdinand R. W. P. and Gubitosa, Guiseppe and Brintzinger, Hans-Herbert} }

eng Journal of Organometallic Chemistry ; 148 (1978), 1. - S. 73-80 1978 deposit-license Supported cyclopentadienylmetal carbonyl complexes : III. Silica-gel-supported iron and cobalt derivatives Mononuclear cyclopentadienylcobalt carbonyl and cyclopentadienyliron carbonyl derivatives were covalently linked to a silica gel support either by reaction of (C<sub>2</sub>H<sub>5</sub>O)Si(CH<sub>3</sub>)<sub>2</sub>C<sub>5</sub>H<sub>5</sub> or of (C<sub>2</sub>H<sub>5</sub>O)<sub>3</sub>SiC<sub>5</sub>H<sub>5</sub> with macroporous silica gel supported materials and subsequent treatment with Co<sub>2</sub>(CO)<sub>8</sub> or Fe<sub>2</sub>(CO)<sub>9</sub> or by reaction of (C<sub>2</sub>H<sub>5</sub>O)Si(CH<sub>3</sub>)<sub>2</sub>C<sub>5</sub>H<sub>4</sub>Co(CO)<sub>2</sub> and (C<sub>2</sub>H<sub>5</sub>O)<sub>3</sub>SiC<sub>5</sub>H<sub>4</sub>Co(CO)<sub>2</sub> with a silica gel support. In contrast to their unsupported analogues, no bi- nuclear or polynuclear species are formed from the SiO<sub>2</sub>-supported metal carbonyl derivatives even at temperatures up to 200°C. The cobalt derivative was found to be a catalyst for olefin hydroformylation reactions. Binuclear SiO<sub>2</sub>-supported species are formed when [(C<sub>2</sub>H<sub>5</sub>O)Si(CH<sub>3</sub>)<sub>2</sub>C<sub>5</sub>H<sub>4</sub>Fe- (CO)<sub>2</sub>]<sub>2</sub> or [(C<sub>2</sub>H<sub>5</sub>O)<sub>3</sub>SiC<sub>5</sub>H<sub>4</sub>Fe(CO)<sub>2</sub>]<sub>2</sub> are treated with a silica gel support. A large fraction of these surface-bound dimers are irreversibly converted into mononuclear hydridoiron carbonyl derivatives by hydrogen at elevated pressures. 2013-07-08T10:08:25Z 2013-07-08T10:08:25Z Brintzinger, Hans-Herbert Gubitosa, Guiseppe Gubitosa, Guiseppe Brintzinger, Hans-Herbert Wild, Ferdinand R. W. P. Wild, Ferdinand R. W. P.

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