Dielectric and structural phase transition of [Ni(dmit)2] - salt with (4-ethoxyanilinium)([18]crown-6) supramolecular cation

Qiong Ye, Ping Ping Shi, Xue Qun Fu, Tomoyuki Akutagawa, Takayoshi Nakamura

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

The hydrogen-bonding supramolecule with 4-ethoxyanilinium and [18]crown-6 is introduced to [Ni(dmit)2]- salt. The arrangement of supramolecular cations formed a three-dimensional structure with the one-dimensional channel filled with [Ni(dmit)2]- anions. The temperature-dependent structural analyses and DSC measurement disclose the first-order phase transition occurred around 285 K, where the lattice parameters show an abrupt change without a space group change. The title compound crystallizes in No. 1 space group P-1 and is piezoelectrically active with d33 value of 4.8 pC N-1. The frequency- and temperature-dependent dielectric constants and potential energy calculation are consistent with the forward-backward motion of the ethoxyl group in the cation.

Original languageEnglish
Pages (from-to)5307-5313
Number of pages7
JournalCrystEngComm
Volume15
Issue number26
DOIs
Publication statusPublished - 2013 Jul 14

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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