Self-Healing Behavior in a Thermo-Mechanically Responsive Cocrystal during a Reversible Phase Transition

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Guangfeng Liu
  • Jie Liu
  • Xin Ye
  • Lina Nie
  • Peiyang Gu
  • Xutang Tao

Detail(s)

Original languageEnglish
Pages (from-to)198-202
Journal / PublicationAngewandte Chemie - International Edition
Volume56
Issue number1
Online published8 Dec 2016
Publication statusPublished - 2 Jan 2017
Externally publishedYes

Abstract

The molecular-level motions of a coronene-based supramolecular rotator are amplified into macroscopic changes of crystals by co-assembly of coronene and TCNB (1,2,4,5-tetracyanobenzene) into a charge-transfer complex. The as-prepared cocrystals show remarkable self-healing behavior and thermo-mechanical responses during thermally-induced reversible single-crystal-to-single-crystal (SCSC) phase transitions. Comprehensive analysis of the microscopic observations as well as differential scanning calorimetry (DSC) measurements and crystal habits reveal that a thermally-reduced-rate-dependent dynamic character exists in the phase transition. The crystallographic studies show that the global similarity of the packing patterns of both phases with local differences, such as molecular stacking sequence and orientations, should be the origin of the self-healing behavior of these crystals.

Research Area(s)

  • cocrystals, coronene, phase transitions, self-healing materials, thermo-mechanical responses

Citation Format(s)

Self-Healing Behavior in a Thermo-Mechanically Responsive Cocrystal during a Reversible Phase Transition. / Liu, Guangfeng; Liu, Jie; Ye, Xin et al.
In: Angewandte Chemie - International Edition, Vol. 56, No. 1, 02.01.2017, p. 198-202.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review