期刊
POLYHEDRON
卷 29, 期 3, 页码 1035-1040出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2009.12.020
关键词
Calix[4]arene based Schiff base; Metal complex; Mossbauer spectroscopy; EPR spectroscopy
资金
- DST
- BRNS
- CSIR
- UGC
A (1+1) macrocyclic calix[4]arene based Schiff base derivative has been synthesized and was subjected to complexation with different Ions or ionic species. viz, VO2+, UO22+, Fe-,(3+) Ni2+, CU2+ and Zn-.(2+) Both the conjugate and the complexes were characterized using various spectral techniques, viz, FTIR, H-1, C-13 NMR and FAB mass The complexes have been further characterized by UV-Vis, EPR and magnetic susceptibility, while the Iron complex was studied further by Mossbauer spectroscopy On the basis of all these studies, the VO2+ and UO22+ complexes were found to be mononuclear, whereas all the other complexes were found to be dinuclear. Based on the studies, the Iron complex was found have a distorted octahedral high spin Fe(III) center with an antiferromagnetically Coupled dinuclear core in the complex. (C) 2009 Elsevier Ltd. All rights reserved.
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