High-Yield Synthesis and Reactivity of Stable Diiron Complexes with Bent-Phosphinidene Bridges

• Published in: Organometallics Vol. 24; no. 23; pp. 5503 - 5505
• Main Authors: Alvarez, Celedonio M, Alvarez, M. Angeles, García, M. Esther, González, Rocío, Ruiz, Miguel A, Hamidov, Hayrullo, Jeffery, John C
• Format: Journal Article
• Language: English
• Published: WASHINGTON American Chemical Society 07.11.2005; Amer Chemical Soc
• Subjects: Chemistry; Chemistry, Inorganic & Nuclear; Chemistry, Organic; Physical Sciences; Science & Technology; CATALYSIS; ELECTRON-TRANSFER; TRIIRON CLUSTERS; FUNCTIONALIZED DIFERRIOPHOSPHONIUM SALTS; PHOSPHORUS ANALOGS; CHEMISTRY; TERMINAL-PHOSPHINIDENE; P-H; LIGAND; DERIVATIVES
• ISSN: 0276-7333; 1520-6041
• DOI: 10.1021/om050617v

Reaction of [Fe2Cp2(μ-CO)2(CO)(PRH2)] (Cp = η5-C5H5; R = Cy, Ph) with [FeCp2]BF4 gives the phosphide-bridged complexes [Fe2Cp2(μ-PRH)(μ-CO)(CO)2]BF4, which are deprotonated by M(OH) (M = Na, K) to give the phosphinidene derivatives [Fe2Cp2(μ-PR)(μ-CO)(CO)2] in high yield. The cyclohexylphosphinidene complex reacts at room temperature with MeI, O2, S8, or H2CCHR‘ (R‘ = CO2Me) to give selectively [Fe2Cp2(μ-PCyMe)(μ-CO)(CO)2]I or neutral derivatives of the types [Fe2Cp2{μ-P(E)Cy}(μ-CO)(CO)2] (E = O, S) and [Fe2Cp2{μ-κ1:κ1,η1-CyPCH2CHR‘C(O)}(μ-CO)(CO)].