A Study of Metal Complexes of Analytical Importance. II. Complexes of Salicylaldoxime and <I>C</I>-Methyl-salicylaldoxime with Vanadium(V)

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概要

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• New complexes of salicylaldoxime (symbol: salmH<SUB>2</SUB>) and <I>C</I>-methyl-salicylaldoxime (symbol: Me-salmH<SUB>2</SUB>) with vanadium(V), [VO(OH)·(salmH)<SUB>2</SUB>] (A), [VO(O-Et)(salmH)<SUB>2</SUB>] (B), [VO·(OH)(Me-salmH)<SUB>2</SUB>] (C) and [V(OH)(Mesalm)<SUB>2</SUB>] (D) were prepared. A, B and C complexes were dark-colored, while the D complex was light-colored.<BR>The absorption spectra of A and C in dimethylformamide were determined. Based on the measurements of the visible, ultraviolet and infrared absorption spectra of these complexes, the following conclusions were drawn:<BR>1) In benzene complex A has the trans structure, while in dimethylformamide it has the cis structure.<BR>2) Complex C has the same properties as A.<BR>3) The esterification of A does not cause any remarkable change in color.<BR>4) The great difference between, the color of C and that of D comes from the difference in the donor atoms of the ligand. In the former the ligands are coordinated as N, O-chelates, and in the latter, as O, O-chelates.

• 社団法人 日本化学会の論文

著者

• Nakamura H.

  Department of Physics, Osaka University

• Tsuchida Ryutaro

  Department of Chemistry Faculty of Science Osaka University

• Shimura Yoichi

  Department of Chemistry Faculty of Science Osaka University

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