IR Study of the H-Bond Coupled with the Mixed-Valence State of Halogen-Bridged Metal Complexes

Kaoru Okaniwa, Hiroshi Okamoto, Tadaoki Mitani, Koshiro Toriumi, Masahiro Yamashita

研究成果: Article査読

45 被引用数 (Scopus)

抄録

IR spectroscopic measurements were made on the halogen bridged metal complexes of {M(chxn)2Br}Br2 (M = Pt, Pd and Ni) which have interchain N-H…Br bonds strongly coupled with the electronic state of chains. The splitting of the N-H stretching modes for Pt and Pd complexes show a good correlation with the amplitude of the CDW in the chain, i.e. with the displacement of bridging halogen ion. No splitting of the N-H band was observed for the Ni complex, which is an evidence of a transformation from a mixed valence (CDW) state to a mono-valence (the Mott-Hub-bard) state by a replacement of M=Pt (or Pd) by Ni. Such IR studies were applied for the estimation of the CDW amplitude under hydrostatic pressure. The results indicated that more detailed information can be derived by the IR study than the X-ray analysis.

本文言語English
ページ(範囲)997-1004
ページ数8
ジャーナルjournal of the physical society of japan
60
3
DOI
出版ステータスPublished - 1991 3
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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