PUB - Publikationen an der Universität Bielefeld

The reaction of (eta-5-C5Me5)(CO)2FeP(SiMe3)2 (1) with tBuPCl2 (2a) affords the metalated cyclotetraphosphane [(eta-5-C5Me5)(CO)2FeP-PtBu]2 (4a) besides the metal-substituted cyclotriphosphane (eta-5-C5Me5)(CO)2Fe - P[PtBu]2 (5a) and the diphosphane (eta-5-C5Me5)(CO)2FeP(SiMe3)P(Cl)tBu (3a), which are detected in the reaction mixture by P-31-NMR spectroscopy. Treatment of 4a with excess of Fe2(CO)9 leads to the tetrahedrane [(eta-5-C5Me5)(CO)2FeP - PtBu]Fe2(CO)6 (6a) and the 1, 3-diphospha-2-propanone derivative [(eta-5-C5Me5)(CO)2FePC(O)-P-tBu]Fe2(CO)6 (7a). Similarily, an analogous complex 7c is obtained from the reaction of in situ prepared (eta-5-C5Me5)(CO)2FeP = P - C6H2(CF3)3-(2,4,6) with an excess of Fe2(CO)9.