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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 15, Number 9
BKCSDE 15(9)
September 20, 1994 

Molybdenum(Ⅵ), -(Ⅴ), and -(Ⅳ) Oxo Complexes with S-methyl 3-(2-hydroxypheny)methylenedithiocarbazate and Its Derivatives
Hee-Jung Kim, Bon-Kweon Koo*
A number of molybdenum(Ⅵ), -(Ⅴ), and -(Ⅳ) oxo complexes with S-methyl 3-(2-hydroxyphenyl)methylenedithiocarbazate and its derivatives as the ONS-donor metal-binding substrate are synthesized. The Mo(Ⅵ)-dioxo complexes are cis-dioxo MoO2L(D), where D is solvent molecules such as MeOH, DMF, Py(pyridine), DMSO, and γ-Pic(γ-picoline). The Mo(Ⅴ)-oxo complexes are of the type (PyH)[MoO(NCS)2L] with an octahedral geometry. The Mo(Ⅳ)-oxo complexes, MoOL are derived from corresponding Mo(Ⅵ)-dioxo complexes by oxo abstraction with PPh3. The complexes are characterized by IR, 1H-NMR, UV-Vis spectroscopy and cyclic voltammetry. On the basis of ligand displacement reaction, the qualitative order of D binding for MoO2L(D) complexes is also discussed.
766 - 771
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