An X-ray photoelectron spectroscopic study of 2-mercaptobenzothiazole metal complexes.

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概要

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• The X-ray photoelectronic spectra of 2-mercaptobenzothiazole (LH) and its metal complexes have been measured. On the basis of the chemical shifts of the N(1s), S(2p), and Cu(2p<SUB>3⁄2</SUB>) electron binding energies, the coordination mode of the ligand and the oxidation state of the copper atom have been examined. It is suggested that, in HgL<SUB>2</SUB>, PbL<SUB>2</SUB>, AgL, and CuL<SUB>3</SUB>H<SUB>2</SUB>Cl complexes, the ligand is solely coordinated through the exocyclic sulfur atom, and that, in CuL, CuL<SUB>2</SUB>, PtL<SUB>2</SUB>, PdL<SUB>2</SUB>, NiL<SUB>2</SUB>, and CdL<SUB>2</SUB> complexes, the ligand is coordinated through both the exocyclic sulfur and nitrogen atoms. In CuL<SUB>2</SUB> and CuL<SUB>3</SUB>H<SUB>2</SUB>Cl, it was found that the copper was present in a (+1) oxidation state, and that part of the ligand molecules, bis(benzothiazol-2-yl) disulfide, resulted from oxidation of LH by the Cu<SUP>2+</SUP> ion on complex formation.

• 公益社団法人 日本化学会の論文

著者

• Sawada Shigemasa

  Osaka Prefectural Industrial Research Institute

• Yoshida Tooru

  Osaka Prefectural Industrial Research Institute

• Yamasaki Kiyoshi

  Osaka Prefectural Industrial Research Institute

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