Synthesis and characterisation of 4,4 '-bipyridine bridged supramolecules derived from [(N-N)Cu(H2O)(4)]X-2, [(N-N) = diamine] and linear 4,4 '-bipyridine. X-ray crystal structures of [(2,2 '-bpy)Cu(4,4 '-bPY)(OClO3)(2)](n) and [(1,10-phen)Cu[(4,4 '-

摘要

Nine complexes of Cu(II) were prepared by reacting [(N-N)Cu(H2O)(4)]X-2 (generated in situ, (N-N) = 1,2-diaminoethane (en), 2,2 ' -bipyridine (2,2 ' -bpy) and 1,10-phenanthroline (1,10-phen); X = NO3;, ClO4 and picrate) with linear bidentate 4,4 ' -bipyridine (4,4 ' -bpy) ligand. All these complexes are polymeric. Three types of complexes are generated (a) [Cu(4,4 ' -bpy)(1.5)(ONO2)(2)](n). nH(2)O, (b) [(en)Cu(4,4 ' -bpy)(1.5)](ClO4)(2n). nH(2)O and (c) [(N-N)Cu(4,4 ' -bpy)X-2]n . nH(2)O [(N-N) = en, X = picrate; (N-N) = 2,2 ' -bpy/1,10-phen, X = NO3, ClO4, picrate]. These complexes have been characterised by CHN analyses, magnetic moment data, IR, UV-Vis and ESR spectral studies. X-ray crystal analyses of [(2,2 ' -bpy)Cu(4,4 ' -bpy)(OClO3)(2)](n) and [(1,10-phen)Cu(4,4 ' -bpy)(OClO3)](n) (ClO4)(n). nH(2)O complexes reveal that both the complexes are 4,4 ' -bpy bridged zig-zag monolayered polymers of infinite length with tetragonal Cu(II). (C) 2001 Elsevier Science Ltd. All rights reserved. [References: 56]