名称:
Synthesis and characterization of polyfluorinated 2,2′-bipyridines and their palladium and platinum complexes, [MX2(bis(RfCH2OCH2)-2,2′-bpy)] (X=Cl, Br)
摘要:
The fluorous-ponytailed bpy ligands at 4,4' and 5,5'-positions, 4,4'-bis(RfCH2OCH2)-2,2'-bpy and 5,5'-bis(RfCH2OCH2)-2,2'bpy, were prepared. Then these two differently positioned bpy ligands with varying fluorous lengths were treated with [PdCl2(CH3CN)(2)], [PtCl2(CH3CN)(2)], or the simple PtBr2 salt to result in the corresponding 4,4'- or 5,5'-metal halide-containing complexes, [MX2(bis(RfCH2OCH2)-2,2'-bpy)] [M = Pd or Pt; X = Cl or Br]. All of these ligands and metal complexes were fully characterized by multi-nuclei NMR (H-1, F-19 and C-13) and FTIR spectroscopy and mass spectrometry (GC/MS, EI and CI, or FAB). Additionally, single crystals of the Pd and Pt complexes with two bpy ligands were successfully obtained, and their X-ray structures are compared with their analogues. (c) 2012 Elsevier B.V. All rights reserved.