Synthesis and Characterisation oftetrahedro-Tetraphosphorus Complexes of Rhenium – Evidence for the First Bridging Complex of White Phosphorus

摘要: Reaction of white phosphorus with [(triphos)Re(CO)2(OTf)] (1) in dichloromethane affords the new tetraphosphorus complex [(triphos)Re(CO)2(η1-P4)](OTf) (2) [triphos = MeC(CH2PPh2)3; OTf OSO2CF3]. Compound 2 reacts a second equivalent 1 to give binuclear [{(triphos)Re(CO)2}2(μ,η1,η1-P4)](OTf)2 (3) which tetrahedro-P4 ligand behaves as tethering unit between two [(triphos)Re(CO)2]+ moieties. Complexes and 3 represent first soluble metal complexes molecule where P4 has not undergone any major modification.