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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 37, Number 6
JKCSEZ 37(6)
December 20, 1993 

 
Title
Synthesis and Characterization of Vanadium(Ⅲ) Complexes with N, P, O-donating Ligands(Ⅱ)

질소, 산소, 인 주개 리간드를 갖는 바나듐(Ⅲ) 착물의 합성과 특성 (제 2 보)
Author
Sang-Oh Oh, Eun-Young Lyou

오상오, 유은영
Keywords
Abstract
VCl3과 N, P, O 주개 리간드를 반응시켜 새로운 바나듐(Ⅲ) 착물을 합성하였으며 원소분석과 적외선, 핵자기 공명 및 전자 흡수스펙트럼 등을 이용하여 그 특성을 조사하였다. 사용한 리간드는 3,5-Lutidine, 1,2-phenylenediamine, 8-hydroxyquinoline, 9,10-phenanthrenequinone, triphenylphosphine, 1,2-bis(diphenylphosphino)ethane, 1,3-bis(diphenylphosphino)propane 과 1,1'-bis(diphenylphosphino)ferrocene이다. 합성된 착물의 V-Cl 신축진동이 298~367 cm-1에서 나타나므로 팔면체 구조로 추정된다. V-X(X=N, P, O) 신축진동이 200~600 cm-1에서 각각 관측되므로 바나듐에 리간드가 배위도니 것을 알 수 있다. Acetonitile의 C≡N 신축진동은 자유리간드(2260 cm-1)보다 약 70 cm-1 증가한 위치에서 나타나며, 또한 C≡N 굽힘진동도 자유리간드(377 cm-1)보다 약 60 cm-1 증가한 위치에서 나타난다. 이러한 결과에 따라 [VCl3(L)2MeCN] 및 [VCl3(L-L)MeCN]와 같은 팔면체 구조의 바나듐(Ⅲ) 착물임을 알 수 있었다.

Some vanadium(Ⅲ) complexes have been prepared from the reaction of VCl3 with N, P, O-donating ligands and characterized by elemental analysis, 1H-NMR infrared and UV-Visible spectroscopy. 3,5-Lutidine, 1,2-phenylenediamine, 8-hydroxyquinoline, 9,10-phenanthrenequinone, triphenylphosphine, 1,2-bis(diphenylphosphino)ethane, 1,3-bis(diphenylphosphino)propane and 1,1'-bis(diphenylphosphino)ferrocene were chosen as coordinating ligands. Stretching frequency ν(V-Cl) of complexes appears) at 298∼367 cm-1, which show octahedral geometries. Stretching frequency of ν(V-X) (X = N, P, O) indicates that ligands are coordinated to vanadium(Ⅲ). Stretching frequency ν(C≡N) of acetonitrile in these complexes are characteristically shifted to about 70 cm-1 higher compared with that of a free ligand (2260 cm-1). Bending frequency of δ(C≡N) is also shifted to about 60 cm-1 higher compared with that of a free ligand (377 cm-1). Finally each vanadium(Ⅲ) complex showed the following formulation; [VCl3(L)2MeCN] or [VCl3(L-L)MeCN].

Page
612 - 617
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