NMR studies on the novel heterobimetallic complexes [M(dppm)(Ph(2)PCH(2)PPh(2)PPPP) {Pt(PPh3)2}]OTf (M = Rh, Ir) derived from the stepwise activation of white phosphorus.
The solution structures of the novel heterobimetallic complexes [Ir(dppm)(Ph(2)PCH(2)PPh(2)PPPP){Pt(PPh(3))2}]OTf and [Rh(dppm)(Ph(2)PCH(2)PPh(2)PPPP){Pt(PPh(3))(2)}]OTf derived from the reaction of Rh and Ir--P(5) precursors with [Pt(C2H4)(PPh3)2] have been unambiguously assigned on the basis of 1H NMR and 31P{1H} NMR data. The results are in agreement with the regio-selective insertion of the {Pt(PPh3)2} moiety resulting in a new pentaphosphorus topology which agrees with the formal formation of a unique phosphonium(+)-tetraphosphabutadienide(2-) ligand.
Istituto di Chimica del Composti Organometallici, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy.
Maria
M
Caporali
Pierluigi
P
Barbaro
Sandra
S
Bolaño
Luca
L
Gonsalvi
Sonia Mañas
SM
Carpio
Maurizio
M
Peruzzini
D007495:Iridium; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D009942:Organometallic Compounds / Q000138:chemical synthesis*; D009943:Organophosphorus Compounds / Q000138:chemical synthesis*; D010758:Phosphorus / Q000737:chemistry*; D012238:Rhodium
D008024:Ligands; D009942:Organometallic Compounds; D009943:Organophosphorus Compounds; D010758:Phosphorus; D007495:Iridium; D012238:Rhodium