Direct synthesis and crystal structure of dehydrated state in vapochromic MMX-type quasi-one-dimensional iodide-bridged platinum complexes

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

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The dehydrated vapochromic 1D coordination polymer, (H 3NC 4H 8NH 3) 2[Pt 2(pop) 4I] (1) was synthesized directly from methanol solution. Although vapochromic 1·4H 2 O has been synthesized, dehydrated high-temperature structure has never been determined because of lowering the quality of crystal by dehydration. The crystal structure of 1 was determined by X-ray crystal structure analysis, and we confirmed that it was identical to the dehydrated high-temperature structure of 1·4H 2 O by comparing the powder X-ray diffraction (XRD) patterns. The Pt-I-Pt distance (d(Pt-I-Pt)) of compound 1·4H 2 O was shortened for approximately 1.1 Å by desorption of water to form compound 1, accompanied with phase transition in electronic states. The other crystal including methanol molecule as lattice solvent, 1·2MeOH, was also obtained as by-product. The synthesis from various kinds of organic solvent has the great potential to develop the field of vapochromism accompanying phase transition of electronic state.

Original languageEnglish
Pages (from-to)85-90
Number of pages6
JournalJournal of Inorganic and Organometallic Polymers and Materials
Volume19
Issue number1
DOIs
Publication statusPublished - 2009 Mar 1

Keywords

  • Desorption/adsorption behavior
  • Electronic state
  • MMX-chain complex
  • Nanowire
  • Phase transition
  • Vapochromism

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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