名称:
Facile synthesis and characterization of μ-chloro, azido, thiocyanato bridged cyclometallated Pd(II) containing Schiff-base ligands
摘要:
mu-Chloro bridged dinuclear cyclometallated Pd(II) complexes [Pd{(4-R)C6H3CH=NC6H3-2,6-i-Pr-2}(mu-Cl)](2) (R = H, OMe) were prepared by reaction of Na2PdCl4 with benzylideneanilines. Unexpectedly, Na2PdCl4 reacted with Schiff-bases bearing a furyl or a thienyl ring to give N-coordinated non-cyclometallated Pd(II) species [Pd(C4H3XCH=NC6H3-2,6-i-Pr-2)(2)Cl-2] (X = O, S). Treating [Pd{(4-R)C6H3CH=NC6H3-2,6-i-Pr-2}( mu-Cl)](2) (R = H, OMe) with an excess of NaN3 or NH4SCN generated mu-N-3 bridged or mu-SCN bridged cyclometallated Pd(II) complexes [Pd{(4-R)C6H3CH=NC6H3-2,6-i-Pr-2}(mu-Y)](2) (R = H, OMe; Y = N-3, NCS). The complexes were characterized by FTIR, NMR spectroscopy, elemental analysis and X-ray crystallography. (C) 2011 Elsevier B.V. All rights reserved.