313472-36-5Relevant academic research and scientific papers
Reactivity of the P4 molecule with cobalt(I) and rhodium(I) polyphosphane fragments
Vaira, Massimo Di,Ehses, Markus P.,Peruzzini, Maurizio,Stoppioni, Piero
, p. 2193 - 2198 (2007/10/03)
The reaction of white phosphorus with the electronically and coordinatively unsaturated systems [(PP3)M]+ [PP3 = tris(2-diphenylphosphanylethyl)phosphane; M = Co, Rh] and [(NP3)Rh]+ [NP3 = tris(2-diphenylphosphanylethyl)amine] in tetrahydrofuran affords new tetraphosphorus complexes. The PP3 metal fragments yield the trigonal bipyramidal [(PP3)M(η1-P4)+ complex cations [M = Co1 (1), Rh(I) (2)] containing the intact P4 molecule bonded end-on to the metal. In contrast, the [(NP3)Rh]+ system yields an octahedral rhodium(III) complex of formula [(NP3)Rh(η2-P4)]BPh4 (3) which contains a bicyclotetraphosphane ligand (P4/2-) coordinated to the metal through the wing-tip P atoms. Compound 3 forms through the oxidative addition of the P4 molecule to the metal fragment. These new tetraphosphorus derivatives, which are very reactive, have been characterized in solution at low temperature by 31P NMR spectroscopy.
