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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 52, Number 5
JKCSEZ 52(5)
October 20, 2008 

 
Title
Synthesis and Characterization of Homobinuclear Complexes of UO2(VI), Th(IV), ZrO(IV) and VO(IV) with Schiff-Base Monohydrazone Derivatives

Schiff-염기인 모노히드라존 치환체와 UO2(VI), Th(IV), ZrO(IV) 및 VO(IV)의 동종이핵 착물에 대한 합성 및 특성
Author
D. C. Dash*, R. K. Mohapatra, S. Ghosh, P. Naik

D. C. Dash*, R. K. Mohapatra, S. Ghosh, P. Naik
Keywords
Schiff 염기, 주형합성, 구조 및 열적 성질, IR 및 H1-NMR 스펙트럼 , Schiff Base, Template Synthesis, Structure and Thermal Properties, IR and H1-NMR Spectra
Abstract
[M2(L)(NO3)n(H2O)2] [이 경우, M = UO22+, Th4+, ZrO2+; 단, UO22+ 및 ZrO2+의 경우 n = 2; Th4+의 경우 n = 6], [(VO)2(L)(SO4)(H2O)], [L = 1,15-di(o-hydroxyphenyl)-2,3,6,7,9,10,13,14-octaaza-4,5,11,12-tetraphenyl/tetramethylpentadeca- 1,3,5,10,12,14-hexa-ene-8-thione (optH2/omtH2)] 형태의 일련의 동종이핵착물을 thiocarbohydrazide, benzilmonohydrazone/diacetylmonohydrazone 및 salicylaldehyd로부터 주형법에 의해 합성한 후, 원소분석, 열분석, 몰 전기전도도, 자기모멘트, UV, IR 및 1H NMR 실험으로부터 그 특성을 조사하였다. 이 결과로부터 UO22+ 및 ZrO2+ 이 온은 육배위 그리고 Th4+ 이온은 팔배위의 반자기성 착물을 형성하는 반면, VO2+의 경우 위의 조성을 갖는 오배위의 상자기성 착물을 형성하는 것이 확인되었다.

A series of homobinuclear complexes of the type [M2(L)(NO3)n(H2O)2], [where M=UO22+, Th4+, ZrO2+, n=2 for UO22+, ZrO2+, n=6 for Th4+] and [(VO)2(L)(SO4)(H2O)], L=1,15-di(o-hydroxyphenyl)-2,3,6,7,9,10,13,14-octaaza-4,5,11,12-tetraphenyl/tetramethyl-pentadeca-1,3,5,10,12,14-hexa-ene-8-thione (optH2/omtH2) have been synthesized in template method from thiocarbohydrazide, benzilmonohydrazone/diacetylmonohydrazone, salicylaldehyde and characterized on the basis of elemental analysis, thermal analysis, molar conductivity, magnetic moment, UV, IR and 1H NMR studies. The results indicate that UO22+ and ZrO2+ ions are hexa-coordinated; Th4+ ion is octa-coordinated yielding diamagnetic complexes whereas the VO2+ ion is penta-coordinated yielding paramagnetic complexes of above composition.

Page
468 - 475
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