Derivatographic studies on transition metal complexes. XX. Thermal electron transfer reactions of cobalt(III) complexes containing phenylbiguanide in the solid phase.
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概要
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The following six cobalt(III) complexes containing phenylbiguanide were prepared and the thermal reactions were followed both isothermally and non-isothermally (derivatographically) in the solid phase: <I>trans</I>-[Co(A)<SUB>2</SUB>(phbgH)<SUB>2</SUB>]X<SUB>3</SUB>·<I>n</I><SUB>2</SUB>O, where A denotes volatile ligands such as NH<SUB>3</SUB>, CH<SUB>3</SUB>NH<SUB>2</SUB> or C<SUB>5</SUB>H<SUB>5</SUB>N; phbgH denotes 1-phenylbiguanide, X chloride or bromide ion; and <I>n</I> is 2 or 3. From the electronic, IR and far-IR spectra and magnetic susceptibilities of these complexes before and after heating, the products obtained by evolving volatile ligands were found to be uniform bivalent cobalt complexes without rupture of the bonds of phbgH to cobalt in spite of the reduction of central cobalt(III) ion, except for the complexes containing ammonia. The reaction seems to be caused by the electron transfer from the coordinated phbgH to cobalt, not from the outer-sphere anions.
- 公益社団法人 日本化学会の論文
著者
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Uehara Akira
Department Of Chemistry Faculty Of Science Kanazawa University
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Kyuno Eishin
Department of Chemistry Faculty of Science Kanazawa University
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Tsuchiya Ryokichi
Department of Chemistry, Faculty of Science, Kanazawa University
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Ihara Yoshinori
Department of Chemistry, Faculty of Science, Kanazawa University
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