水素結合と電子状態 The H-bonds and the Electronic States

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In this report, the cooperation of electron and proton in organic-inorganic hybrid systems is discussed.<BR>Particularly, the experimental results of the X-ray diffraction measurements on the 1-D metallic charge-transfer crystal of [Pd (H<SUB>2-x</SUB>EDAG) (HEDAG) ] TCNQ (EDAG=ethylenediaminoglyoxime, x=ca. 0.7) were focused. Below the metal-insulator (M-I) phase transition (180 K), commensurate superlattice reflections were observed with a period of c<SUP>*</SUP>/2, c<SUP>*</SUP>/3, and c<SUP>*</SUP>/12 along the 1-D axis, <I>c</I>. The full X-ray diffraction analyses of temperature-dependent reflections ignoring the superlattice spots show remarkable anomalies of the temperature factors below 180 K for several atoms which associate with the intermolecular H-bonds between donor-molecules. This is a result of cooperation between the order-disorder transition of the 1-D H-bond intermolecular superlattice and the M-I transition of the 1-D electronic state in TCNQ acceptor stacks. These experimental results support a model of purely 1-D metallic hole-conduction introduced by partial deprotonation of H-bonds in the ligands of [Pd (H<SUB>2-x</SUB>EDAG) (HEDAG) ] .

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  • 日本結晶学会誌  

    日本結晶学会誌 40(1), 83-89, 1998-02-28 

    The Crystallographic Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002590386
  • NII書誌ID(NCID)
    AN00188364
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03694585
  • NDL 記事登録ID
    4446292
  • NDL 雑誌分類
    ZM46(科学技術--地球科学--岩石・鉱物・鉱床)
  • NDL 請求記号
    Z15-138
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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