Cooperativity of dynamics of 18-crown-6 molecule forming one-dimensional chain in Cs 2(18-crown-6) 3[Ni(dmit) 2] 2

Satoaki Ikeuchi, Yuji Miyazaki, Sadamu Takeda, Tomoyuki Akutagawa, Sadafumi Nishihara, Takayoshi Nakamura, Kazuya Saito

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Heat capacity of Cs2 (18-crown-6)3 [Ni (dmit)2] 2 was measured by adiabatic calorimetry. A broad thermal anomaly was observed around 225 K. The entropy gain (about 52 J K-1 mol-1) is much larger than that expected for twofold disordering of 18-crown-6 assumed in the previous structure analysis. The shape of thermal anomaly was qualitatively explained by a linear Ising model developed for cooperative disordering in polymers. The 18-crown-6 molecules forming a one-dimensional chain in the crystal are orientationally disordered with moderate cooperativity.

本文言語English
論文番号044514
ジャーナルJournal of Chemical Physics
123
4
DOI
出版ステータスPublished - 2005
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

フィンガープリント

「Cooperativity of dynamics of 18-crown-6 molecule forming one-dimensional chain in Cs <sub>2</sub>(18-crown-6) <sub>3</sub>[Ni(dmit) <sub>2</sub>] <sub>2</sub>」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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