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ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 56, Number 1
JKCSEZ 56(1)
February 20, 2012 |
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Title |
Synthesis and Characterization of Homo Binuclear Macrocyclic Complexes of UO2(VI), Th(IV), ZrO(IV) and VO(IV) with Schiff-Bases Derived from Ethylene diamine/Orthophenylene Diamine, Benzilmonohydrazone and Acetyl Acetone
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Author |
R K Mohapatra, S Ghosh, P Naik, S K Mishra, A Mahapatra, D C Dash |
Keywords |
Schiff base, Binuclear macrocyclic complexes, Template synthesis, Structure and spectral properties
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Abstract |
A series of homo binuclear complexs of the type [M2(L/L’)(NO3)n].mH2O, [where M=UO2 2+, Th4+, ZrO2+] and [(VO)2(L/L’)(SO4)2]·2H2O, L=1,5,6,9,12,15,16,20 octaaza-7,813,14-tetraphenyl-2,4,17,19-tetramethyl-1,4,6,8,12,14,16,19- docosaoctene (OTTDO) or L’=10:11;21:22-dibenzo-1,5,6,9,12,15,16,20-octaaza-7,813,14-tetraphenyl-2,4,17,19-tetramethyl- 1,4,6,8,12,14,16,19-docosaoctene (DOTTOT), n=4 for UO2 2+, ZrO2+ n=8 for Th4+ m=1,2,3 respectively, have been synthesized in template method from ethylenediamine/orthophenylene diamine, benzil monohydrazone and acetyl acetone and characterized on the basis of elemental analysis, thermal analysis, molar conductivity, magnetic moment, electronic, infrared, 1H-NMR studies. The results indicate that the VO(IV) ion is penta co-ordinated yielding paramagnetic complexes; UO2(VI), ZrO(IV) ions are hexa co-ordinated where as Th(IV) ion is octa co-ordinated yielding diamagnetic complexes of above composition. The fungi toxicity of the ZrO(IV) and VO(IV) complexes against some fungal pathogen has been studied.
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62 - 67 |
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