Oxalate-Bridged Bimetallic Complexes {NH(prol)<sub>3</sub>}[MCr(ox)<sub>3</sub>] (M = Mn<sup>II</sup>, Fe<sup>II</sup>, Co<sup>II</sup>; NH(prol)<sub>3</sub><sup>+</sup> = Tri(3-hydroxypropyl)ammonium) Exhibiting Coexistent Ferromagnetism and Proton Conduction

DOI HANDLE Web Site PubMed 研究データあり 被引用文献51件
  • Hisashi O̅kawa
    Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki 8-10-1, Higashi-ku, Fukuoka 812-8581, Japan, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan, and JST-CREST, Sanban-cho 5, Chiyoda-ku, Tokyo 102-0075, Japan
  • Akihito Shigematsu
    Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki 8-10-1, Higashi-ku, Fukuoka 812-8581, Japan, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan, and JST-CREST, Sanban-cho 5, Chiyoda-ku, Tokyo 102-0075, Japan
  • Masaaki Sadakiyo
    Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki 8-10-1, Higashi-ku, Fukuoka 812-8581, Japan, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan, and JST-CREST, Sanban-cho 5, Chiyoda-ku, Tokyo 102-0075, Japan
  • Takuya Miyagawa
    Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki 8-10-1, Higashi-ku, Fukuoka 812-8581, Japan, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan, and JST-CREST, Sanban-cho 5, Chiyoda-ku, Tokyo 102-0075, Japan
  • Ko Yoneda
    Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki 8-10-1, Higashi-ku, Fukuoka 812-8581, Japan, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan, and JST-CREST, Sanban-cho 5, Chiyoda-ku, Tokyo 102-0075, Japan
  • Masaaki Ohba
    Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki 8-10-1, Higashi-ku, Fukuoka 812-8581, Japan, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan, and JST-CREST, Sanban-cho 5, Chiyoda-ku, Tokyo 102-0075, Japan
  • Hiroshi Kitagawa
    Department of Chemistry, Faculty of Science, Kyushu University, Hakozaki 8-10-1, Higashi-ku, Fukuoka 812-8581, Japan, Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan, and JST-CREST, Sanban-cho 5, Chiyoda-ku, Tokyo 102-0075, Japan
  • 90234244

書誌事項

公開日
2009-08-28
DOI
  • 10.1021/ja905368d
公開者
American Chemical Society (ACS)

この論文をさがす

説明

The oxalate-bridged bimetallic complexes {NH(prol)(3)}[M(II)Cr(III)(ox)(3)] (M(II) = Mn(II), Fe(II), Co(II)) with hydrophilic tri(3-hydroxypropyl)ammonium (NH(prol)(3)(+)) were prepared by a new synthetic procedure, and the effects of the NH(prol)(3)(+) ion upon the structure, magnetism, and electrical conduction were studied. An X-ray crystallographic study of the MnCr dihydrate, {NH(prol)(3)}[MnCr(ox)(3)].2H(2)O, was performed. Crystal data: hexagonal, P6(3), a = b = 9.3808(14) A, c = 15.8006(14) A, Z = 2. The structure comprises oxalate-bridged bimetallic layers interleaved by NH(prol)(3)(+) ions. The ions assume a tripodal configuration and are hydrogen bonded to the bimetallic layers together with water molecules, giving rise to a short interlayer separation (7.90 A) and unsymmetrical faces to the bimetallic layer. Cryomagnetic studies demonstrate ferromagnetic ordering with transition temperature of 5.5 K for the MnCr complex, 9.0 K for the FeCr complex, and 10.0 K for the CoCr complex. The interlayer magnetic interaction is negligibly weak in all of the complexes despite the short interlayer separation. A slow magnetization is observed in all the complexes. This is explained by spin canting associated with the unsymmetrical feature of the bimetallic layer. The complexes show proton conduction of 1.2 x 10(-10) to 4.4 x 10(-10) S cm(-1) under 40% relative humidity (RH) and approximately 1 x 10(-4) S cm(-1) under 75% RH. On the basis of water adsorption/desorption profiles, the conduction under 40% RH is mediated through the hydrogen-bonded network formed by the bimetallic layer, NH(prol)(3)(+) ions, and water molecules (two per MCr). Under 75% RH, additional water molecules (three per MCr) are concerned with the high proton conduction. This is the first example of a metal complex system exhibiting coexistent ferromagnetism and proton conduction.

収録刊行物

被引用文献 (51)*注記

もっと見る

関連研究データ

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ