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A Linear Trinuclear Mixed Valence Vanadium(V/IV/V) Complex: Synthesis, Characterization and Solution Behavior

Title
A Linear Trinuclear Mixed Valence Vanadium(V/IV/V) Complex: Synthesis, Characterization and Solution Behavior
Author
나명수
Issue Date
2005-02
Publisher
ROYAL SOC CHEMISTRY
Citation
DALTON TRANSACTIONS, No. 4, Page. 797-803
Abstract
The reaction between vanadium(III) acetylacetonate and N-hexanoylsalicylhydrazide (H(3)hshz) yields a linear trinuclear mixed valence vanadium(V/IV/V) complex, V3O3(hshz)(2)(OEt)(2), 1 ( where hshz(3-) is a triply deprotonated trianionic N-hexanoyl salicylichydrazidate), with a pseudo C-2 symmetry. A V(IV) O2+ group is at the center of complex 1 and is spanned by two terminal vanadium(V) ions with a square pyramidal geometry bridged via hydrazido ligands. In the crystalline form, the oxo group of the central vanadium(IV) ion is weakly coordinated to one of the terminal square pyramidal vanadium(V) ions of the neighboring trinuclear complex to form a dimeric structure. These dimers are linked via bis mu-alkoxo bridges to form a one-dimensional zigzag chain structure. In chloroform or methylene dichloride, the weak linkages between the trinuclear complexes present in the crystalline form are broken, and only the mixed valence trinuclear complex can be identified. In dimethyl sulfoxide or dimethylformamide, the trinuclear complex partially dissociates, and the unligated ligands remain in equilibrium with the trinuclear complex.
URI
https://pubs.rsc.org/en/content/articlehtml/2005/dt/b500169mhttp://repository.hanyang.ac.kr/handle/20.500.11754/110176
ISSN
1477-9226; 1477-9234
DOI
10.1039/b500169m
Appears in Collections:
COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > ETC
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