Bis(cyclopentadienyl)methan-verbrückte Zweikernkomplexe, V. Heteronukleare Co/Rh-, Co/Ir-, Rh/Ir- und Ti/Ir-Komplexe mit dem Bis(cyclopentadienyl)methan-Dianion als Brückenliganden
✍ Scribed by Werner, Helmut ;Schneider, Dirk ;Schulz, Michael
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1992
- Tongue
- English
- Weight
- 692 KB
- Volume
- 125
- Category
- Article
- ISSN
- 0009-2940
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✦ Synopsis
Cyclopentadienyl anion, substituted / Cobalt complexes / Rhodium complexes 1 Iridium complexes / Bis(cyclopentadieny1)methane dianion as bridging ligand Bis(cyclopentadieny1)methane-bridged Dinuclear Complexes, Vtl]. -Heteronuclear Co/Rh-, Co/Ir-. Rh/Ir-, and Ti/Ir Complexes with the Bis(cyclopentadieny1)methane Dianion as Bridging Ligand * The lithium and sodium salts of the [C5H5CH2C5H4]-anion, derivatives 9 and 10 from which on reaction with [Co(CO),I], 1 and 2, react with [Co(CO),I], [Rh(CO),C1J2, and [Ir(C0)3C1], [Rh(CO),Cl],, and [C5H5TiC131 the heteronuclear complexes to give predominantly the mononuclear complexes [(C5H5-[CH,(C5H4),][M(CO)z][M'(CO),] (11 -13) and (CHz(C5H4)2]-CH,C,H,)M(CO),] (3, 5, 7) together with small amounts of the [Ir(C0)2][C5H5TiC1z] (17) are obtained. Photolysis of 11 and 12 dinuclear compounds [CH,(C5H4)z][M(C0)2]2 (4, 6, 8). The 'Hleads almost quantitatively to the formation of the CO-bridged and I3C-NMR spectra of 3, 5, and 7 prove that the CH2C5H5 compounds [CH,(C5H4)2][M(CO)(p-CO)M'(CO)] (14, 15). Acsubstituent is linked to the x-bonded ring in two isomeric cording to an X-ray crystal structure analysis the Co/Rh comforms. Metalation of 5 and 7 with nBuLi affords the lithiated plex 14 is isostructural to [CHz(C5H4),][Rh,(CO)z(p-CO)] (16).