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概要
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The crystal structures of four binuclear copper(II) complexes of <I>N</I>,<I>N</I>′,<I>N</I>″,<I>N</I>'″-tetrakis(2-aminoethyl)-1,4,8,11-tetraazacyclotetradecane (taec), [Cu<SUB>2</SUB>(taec)I](ClO<SUB>4</SUB>)<SUB>3</SUB>(<B>1</B>), [Cu<SUB>2</SUB>(taec)F](ClO<SUB>4</SUB>)<SUB>3</SUB>·H<SUB>2</SUB>O (<B>2</B>), [Cu<SUB>2</SUB>(taec)(NO<SUB>2</SUB>)](ClO<SUB>4</SUB>)<SUB>3</SUB>(<B>3</B>), and [Cu<SUB>2</SUB>(taec)(CH<SUB>3</SUB>COO)](ClO<SUB>4</SUB>)<SUB>3</SUB>·2H<SUB>2</SUB>O (<B>4</B>), were determined by single-crystal X-ray analysis. In all the complexes, each copper is coordinated by two ring- and two pendant-nitrogen atoms. All the complexes except for <B>4</B> adopt similar structures, where I<SUP>−</SUP>, F<SUP>−</SUP>, or NO<SUB>2<SUP>−</SUP></SUB> is incorporated into the "cavity" of [Cu<SUB>2</SUB>(taec)]<SUP>4+</SUP> as a bridging group. The structure of <B>4</B> is different from those of <B>1</B>, <B>2</B>, and <B>3</B>. In <B>4</B>, one of the oxygen atoms of acetate ion coordinates to one of the copper ions at the apical site and the other oxygen occupies an in-plane coordination site of the other copper ion. The structural effect of incorporation of an anion, X, into [Cu<SUB>2</SUB>(taec)]<SUP>4+</SUP> was discussed on the basis of the crystal structures.
- 公益社団法人 日本化学会の論文
著者
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Murase Ichiro
Laboratory of Chemistry, College of General Education, Kyushu University
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Kida Sigeo
Coordination Chemistry Laboratories, Institute for Molecular Science
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Mikuriya Masahiro
Coordination Chemistry Laboratories, Institute for Molecular Science
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