Synthesis, Spectroscopic Studies Andab-Initio Structure Determination from X-ray Powder Diffraction of Bis-(N-3-acetophenylsalicylaldiminato)copper(ii)
Crystal research and technology(2005)
摘要
The synthesis, spectroscopic studies and crystal structure determination from X-ray powder diffraction have been carried out for bis-(N-3-acetophenylsalicylaldiminato)copper(II). The structure is triclinic, space group P (l) over bar with unit cell dimensions a=11.817(1)angstrom, b=12.087(1)angstrom, c=9.210(1)A, alpha=102.62(1)degrees, beta=111.16(1)degrees, gamma=86.15(1)degrees, V=1197.0(2)angstrom(3), Z=2. The structure has been solved by Monte Carlo simulated annealing approach and refined by GSAS package. The final Rp value was 8.68%. The coordination geometry around the copper atom in the complex is intermediate between square-planar and tetrahedral with two salicylaldimine ligands in trans arrangement. Intermolecular C-(HO)-O-.... hydrogen bonds between molecules related by translation generate infinite chains along [010] direction. The molecular chains are linked via additional C-(HO)-O-.... hydrogen bonds to form a three-dimensional supramolecular network. (c) 2005 WILEY-VCH Vertag GmbH & Co. KGaA, Weinheim.
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关键词
direct space structure solution,Rietveld refinement,Schiff-base copper(II) complex,synthesis,spectral studies,X-ray powder diffraction
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