Mixed charge-ordering state of MMX-type quasi-one-dimensional iodide-bridged platinum complexes with binary countercations

Hiroaki Iguchi, Shinya Takaishi, Takashi Kajiwara, Hitoshi Miyasaka, Masahiro Yamashita, Hiroyuki Matsuzaki, Hiroshi Okamoto

Research output: Contribution to journalShort survey

20 Citations (Scopus)

Abstract

A new charge-ordering (CO) state in quasi-1D iodide-bridged dinuclear Pt complexes (MMX-chains) was developed by introducing two different kinds of countercations. From crystal structure analysis, K2(H 3NCH2CHMeCH2NH3)[Pt 2(pop)4I]E4H2O (pop = P 2H2O5 2-) had structural features of both ACP (alternating charge-polarization) and CDW (charge-density-wave) states. Therefore, this new CO state was named ACP+CDW state. Remarkably, the structure was three dimensionally ordered, which was verified by the strong superlattice reflections observed in an X-ray oscillation photograph. Using polarized Raman and 31P MAS NMR spectroscopies, it was shown that there were two different Pt2 units and four inequivalent P atoms, respectively. These results agreed with the crystal structure analysis and supported the presence of the ACP+CDW state.

Original languageEnglish
Pages (from-to)17668-17669
Number of pages2
JournalJournal of the American Chemical Society
Volume130
Issue number52
DOIs
Publication statusPublished - 2008 Dec 31

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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