Collect. Czech. Chem. Commun. 2006, 71, 215-236

Synthesis and Coordination Behaviour of a Phosphanyl(vinyl)ferrocene

Petr Štěpnička* and Ivana Císařová

Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague 2, Czech Republic


Donor properties of 1-(diphenylphosphanyl)-1'-vinylferrocene (1) were investigated in a series of reactions with palladium(II), rhodium(I), and copper(I) compounds. In all complexes obtained, compound 1 coordinates exclusively as a monodentate phosphorus donor, giving trans-[PdCl2(1P)2] (3) with [PdCl2(cod)], [PdCl(LNC)(1P)] (4) with [{Pd(LNC)}2(μ-Cl)2], and trans-[RhCl(CO)(1P)2] (5) with [{Rh(CO)2}2(μ-Cl)2] (cod = cycloocta-1,5-diene, LNC = 2-[(dimethylamino)methyl-κN]phenyl-κC1). Copper(I) precursors CuI and [Cu(MeCN)4]PF6 reacted with 1 in a similar manner, yielding at appropriate molar ratios heterocubane [(μ3-I)4{Cu(1P)}4] (6) and the bis(phosphane) complex [Cu(MeCN)(1P)2]PF6 (7), respectively. The structures of 1-(diphenylthiophosphoryl)-1'-vinylferrocene (2), 3, 4·CHCl3, 6·C6H6, and 7 have been determined by single-crystal X-ray diffraction.

Keywords: Ferrocenes; Phosphinoalkene; Palladium(II); Rhodium(I); Copper(I) complexes; Structure elucidation; P-Ligands; X-Ray diffraction.

References: 50 live references.