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8162083 
Journal Article 
SOME BRIDGE-CLEAVAGE CHEMISTRY OF CYCLOMETALATED (PD, PT) DIMERIC COMPLEXES OF TRIMESITYLPHOSPHINE 
Alyea, EC; Malito, G 
1993 
SOC CHIMICA ITALIANA 
ROME 
123 
12 
709-711 
WOS:A1993MW18000010 
The cyclometallated dimers, [M(Pmes2C6H2(CH3)2CH2)Cl]2 (M=Pd, Pt), react with PPh3, AsPh3, P(OPh)3 and 5-phenyldibenzophosphole (DBP) via bridge-cleavage of the MCl2M bridge unit to give the corresponding monomers, trans-[M(Pmes2C6H2(CH3)2CH2)Cl(L). A cis complex is observed only for the case of M = Pt, L = SbPh3. Ligand comparisons are made qualitatively in terms of reactivity and trans-influence exerted. Chemistry for the species [M(Pmes2C6H2(CH3)2CH2) X (PPh3)] (X = Cl, Br, I, Pz), is pursued in some detail to investigate the effects of the nature of X. Phosphorus-31 NMR data for [MCl2(PPh3)2] (M=Pd, Pt) are reported for the first time.