New phosphino-oxazoline and related phosphino-iminolate palladium complexes; structure of an unusual zwitterionic dinuclear Pd(ii) complex
Abstract
Reaction of the phosphino-oxazoline chiral Pd(dmba-C,N)Cl}-(R)-{C
H
PPh2-(R)-oxPh}Pd
(dmba-C,N)]
4 in which a Pd(dmba-C,N)Cl moiety is directly bonded to the carbon α to the P atom of the anionic P,N chelate of 2. This results in an unsual zwitterionic structure. In the course of this work, crystals of [(dmba-C,N)Pd(μ-OH)(μ-Cl)Pd(dmba-C,N)]·1/2[Pd(dmba-C,N)(μ-Cl)]27 were obtained and the single crystal X-ray analyses of complexes 2, 4·2THF, 5·CH2Cl2, [PdCl(Me){(R)-PCH2oxPh-κ2P,N}]
6 and 7 are presented.