The effect of steric condition on the structure of cobalt(II), nickel(II), and copper(II) complexes with Schiff bases obtained from salicylaldehyde derivatives and 9-aminofluorene.
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概要
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Cobalt(II), nickel(II), and copper(II) complexes with <I>N</I>-(9-fluorenyl)salicylideneaminates (abbreviated as X-sal-fl) have been examined in relation to the effect of steric condition on the structure of the metal complexes. Compounds of the type M(X-sal-fl)<SUB>2</SUB> and their pyridine adducts were isolated as crystals. Complexes of the type Cu(X-sal-fl)Cl were also obtained. Both in the solid state and in non-donor solvents, the complexes Co(X-sal-fl)<SUB>2</SUB> have a tetrahedral configuration, and Ni(X-sal-fl)<SUB>2</SUB> and Cu(X-sal-fl)<SUB>2</SUB> have a square-planar configuration. Possible structures of the pyridine adducts are discussed. The results indicate that the steric hindrance caused by fluorenyl is greater than that by diphenylmethyl.
- 公益社団法人 日本化学会の論文
著者
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Tanaka Hideaki
Institute For Protein Research Osaka University
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Yamada Shoichiro
Institute of Chemistry, College of General Education, Osaka University
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Yamanouchi Kuniko
Institute of Chemistry, College of General Education, Osaka University
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