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KMID : 1059519900340060593
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Journal of the Korean Chemical Society
1990 Volume.34 No. 6 p.593 ~ p.599
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Synthesis and Characterization of Square Planar Mixed-Ligand Complexes (Ⅰ) : Synthesis and Spectroscopic Property of M(S-S)(N-N) Type Complexes with Ni (Ⅱ), Pd (Ⅱ), and Pt (Ⅱ)
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Oh Sang-Oh
Chung Duck-Young
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Abstract
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A series of new, square planar, and mixed-ligand complexes of Ni(Ⅱ), Pd(Ⅱ), and Pt(Ⅱ) have been prepared. From the observation of electronic spectrum for the variation of the ligand substituents, the very intense absorption band in the visible range is by the electronic transition of dithiolene to diimine ligand, HOMO to LUMO. In the various solvent systems the IT band shows the similar behavior to IT transition of mixed-valence dinuclear complexes followed with Hush theory, happens rto dominently by the inner sphere charge transfer transition. The negative solvatochromism represents that the excited-state electric dipole is reduced or reversed by the electronic transition.
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