253789-36-5Relevant academic research and scientific papers
New cyclometalated palladium(II) complexes with iminophosphines: Crystal structures of [Pd(C^N)(o-Ph2PC6H4-CH=NR)][PF6] (C^N=azobenzene, R=Et; C^N=2-phenylpyridine, R=Me)
Sanchez, Gregorio,Serrano, Jose L.,Moral,Perez, Jose,Molins, Elies,Lopez, Gregorio
, p. 3057 - 3064 (1999)
The synthesis of new cyclometalated compounds of palladium(II) with the mixed-donor bidentate ligands o-Ph2PC6H4-CH=NR is described. Two series of complexes [Pd(C^N)(o-Ph2PC6H4-CH=NR)][PF6] have been prepared using either azobenzene or 2-phenylpyridine as cyclometalated ligands [C^N=azobenzene (azb); R=Me (1a), Et (2a), nPr (3a), iPr (4a), tBu (5a), Ph (6a), NH-Me (7a); C^N=2-phenylpyridine (phpy); R=Me (1b), Et (2b), nPr (3b), iPr (4b), tBu (5b), Ph (6b), NH-Me (7b)]. The new complexes were characterized by partial elemental analyses and spectroscopic methods (IR, FAB, 1H and 31P NMR). The molecular structures of compounds 2a (monoclinic, P 21/n) and 1b (monoclinic, C 2/c) have been determined by a single-crystal diffraction study. In both cases this technique revealed the relative trans configuration between the phosphorus atom and the nitrogen atom of the ortho-metalated ligand. Elsevier Science Ltd.
