Peroxo-, Oxo-, and catena-Oxo-Manganese Complexes with <I>N</I>,<I>N</I>′-Ethylenebis(salicylideneimine) Analogues
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概要
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By the reaction of Mn<SUP>II</SUP>(salen) (salen=<I>N</I>,<I>N</I>′-ethylenebis(salicylideneiminato) dianion) and its analogues with molecular oxygen in organic solvents, three types of complexes including as structural units the Mn<SUP>III</SUP>–O<SUB>2</SUB>–Mn<SUP>III</SUP>,–(–Mn<SUP>IV</SUP>–O–)–<I><SUB>n</SUB></I>, and Mn<SUP>IV</SUP>=O bonds respectively, have been obtained, and characterized by means of their electronic and infrared spectra, by thermogravimetric analysis, and in terms of their magnetic properties. The lower magnetic moments for [Mn<SUP>III</SUP>(salen)]<SUB>2</SUB>O<SUB>2</SUB> and –[–Mn<SUP>IV</SUP>(salen)–O–]–<I><SUB>n</SUB></I> than those expected have been interpreted in terms of antiferromagnetic interactions. The oxo complex was found to give the catena-oxo complex quantitatively in a DMF, DMSO, or Py solution. The effects of the oxygen partial pressure and the nature of the substituent in the organic part on the complex formation were investigated. A lower partial pressure of oxygen has the advantage of yielding the μ-peroxo complex in a higher yield. A discussion of the reaction mechanism is also included.
- 公益社団法人 日本化学会の論文
著者
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Shono Toshiyuki
Department Of Applied Chemistry Faculty Of Engineering Osaka Institute Of Technology
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Matsushita Takayuki
Department Of Materials Chemistry Faculty Of Science And Technology Ryukoku University
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Shinra Koichiro
Department of Applied Chemistry, Faculty of Engineering, Osaka University
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Masuda Isao
Department of Chemistry, Faculty of Science, Fukuoka University
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Yarino Tatsuo
Department of Applied Chemistry, Faculty of Engineering, Osaka University
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