Metal complexes of peptides. III. The preparation and properties of diammine(oligopeptidato)cobalt(III) complexes.
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概要
- 論文の詳細を見る
Complexes of the [Co(tripeptidato)(NH<SUB>3</SUB>)<SUB>2</SUB>] and NH<SUB>4</SUB>[Co(tetrapeptidato)(NH<SUB>3</SUB>)<SUB>2</SUB>] types (tripeptidato and tetrapeptidato denote the tri- and tetraanions of the coordinating peptides respectively) have been prepared and characterized by means of their electronic, <SUP>1</SUP>H NMR, and circular dichroism (CD) spectral data. In the NH<SUB>4</SUB>[Co(tetrapeptidato) (NH<SUB>3</SUB>)<SUB>2</SUB>] complex, the pep tide coordinates to cobalt(III) as a quadridentate ligand through the nitrogens of an amino and three amide groups. The additivity of the vicinal CD spectra has been found to hold for the complexes of a series of tripeptides containing L-alanine and/or glycine residue. These tri- and tetrapeptidato complexes in water easily undergo aquation reaction, releasing the ammonia molecule.
- 公益社団法人 日本化学会の論文
著者
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Yasui Takaji
Department Of Chemistry Faculty Of Science Kochi University
-
Ama Tomoharu
Department Of Chemistry Faculty Of Science Kochi University
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Kawaguchi Hiroshi
Department Of Applied Chemistry Faculty Of Engineering Utsunomiya University
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Ishii Mari
Department of Chemistry, Faculty of Science, Kochi University
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