Synthesis and derivatization, structures and transition metal (Mo(0), Fe(II), Pd(II) and Pt(II)) complexes of phenylaminobis(diphosphonite), PhN{P(OC6H4OMe-o)2}2
作者:Maravanji S. Balakrishna、P.P. George、Joel. T. Mague
DOI:10.1016/j.jorganchem.2004.08.003
日期:2004.10
The synthesis, derivatization and coordination behavior of a new aminobis(diphosphonite), PhNP(OC6H4OMe-o)(2)}(2) (1) is described. The ligand 1 reacts with H2O2, elemental sulfur or selenium to give the corresponding dichalcogenides PhNP(E)(OC6H4OMe-o)(2)}(2) (E = O, 2; S, 3; Se, 4) in good yield. Reactions of 1 with Mo(CO)(6), Pd(NCCH3)(2)Cl-2 and Pt(COD)Cl-2 resulted in the formation of the chelate complexes, Mo(CO)(4)[PhNP(OC6H4OMe-o)(2)}(2)] (5) and MCl2[PhNP(OC6H4OMe-o)(2)}(2)] (M = Pd,7; M = Pt, 8) whereas in the reaction of 1 with [CpFe(CO)(2)](2), one of the P-N bonds cleaves due to the metal assisted hydrolysis to give a mononuclear complex, [CpFe(CO)P(O)(OC6H4OMe-o)(2)}PhN(H)(P(OC6H4OMe-o)(2))}] (6). The molecular structures of 1, 4, 5 and 6 are determined by X-ray studies. (C) 2004 Elsevier B.V. All rights reserved.