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

Reaction of white phosphorus with [(triphos)Re(CO)2(OTf)] hedro-P4 ligand behaves as tethering unit between two (1) in dichloromethane affords the new tetraphosphorus [(triphos)Re(CO)2]+ moieties. Complexes 2 and 3 represent complex [(triphos)Re(CO)2(ç1-P4)](OTf) (2) [triphos = MeC- the first soluble metal complexes of the tetraphosphorus (CH2PPh2)3; OTf = OSO2CF3]. Compound 2 reacts with a molecule where the P4 ligand has not undergone any major second equivalent of 1 to give the binuclear complex modification. [{(triphos)Re(CO)2}2(ì,ç1,ç1-P4)](OTf)2 (3) in which a tetra-