BRUNNER, H and GRASSL, R and WACHTER, J and NUBER, B and ZIEGLER, ML (1992) SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF BCPM-METAL-CARBONYL DIMERS WITH GROUP-VIB METALS (BCPM + BISCYCLOPENTADIENYLMETHANE). JOURNAL OF ORGANOMETALLIC CHEMISTRY, 431 (2). pp. 143-150. ISSN 0022-328X,
Full text not available from this repository.Abstract
The reaction of methylendicyclopentadiene (bcpmH2) with (CH3CN)3M(CO)3 (M = Cr, Mo, W) gives the complexes bcpmM2(CO)6 (1-3) in good yields (47-78%). The synthesis of bCPmMO2(CO)6Cl2 (4) starts from bcpmLi2 and Mo(CO)6. In a one-pot procedure, acidification with CH3CO2H and reaction with CCl4 give 4 in 43% yield. Low temperature H-1 NMR investigations of 1 and 2 reveal a dynamic process analogous to that already observed for the silylbridged homologues. The X-ray analysis of 1 proves the chiral structure of the molecule, which is the consequence of the distortion of the bcpm-ligand. The Cr-Cr distance is 3.211(2) angstrom.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RHODIUM COMPLEXES; BASIC METALS; CHEMISTRY; CRYSTAL; MONOXIDE; LIGANDS; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54488 |
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