Inorganic Chemistry, Vol.43, No.21, 6543-6545, 2004
(R/S)(A2)- or (R,S/S,R)(p,p')-[Pd(kappa(2)-P,P-{P(OC6H3Bu2t-2,4)(2)N(Me)C(O)N(Me)PPh2}Cl-2]: Chirality created by ring tilting
The reaction of the unsymmetric bisphosphanyl urea ligand P(OC6H3Bu2t-2,4)(2)N(Me)C(O)N(Me)PPh2 with [Pd(cod)Cl-2] (cod = 1,5-cyclooctadiene) results in the chiral palladacycle (R,S)(A2)-[Pd(-kappa(2)-P, P-{P(OC6H3Bu2t-2,4)(2)N(Me)C(O)N(Me)PPh2}Cl-2]. The chirality of the title compound is caused by the tilting of the central, six-membered PdP2N2C ring along one of the two P-N vectors and comprises two chiral planes and one chiral axis.