Issue 16, 2016

Reversible phase transition triggered by order–disorder transformations and distortions in dipropylammonium d-(+)-10-camphorsulfonate

Abstract

Dipropylammonium D-(+)-10-camphorsulfonate (compound 1) was constructed from a mono-component rotator–stator type dipropylammonium cation and D-(+)-10-camphorsulfonate anion and undergoes a phase transition at 205 K. Differential scanning calorimetry curves of 1 present a pair of peaks, which indicate reversible and first-order phase transition characters. Continuous changes in the dielectric constants, but with a slight anomaly near the phase transition point further confirm the occurrence of a phase transition. Single crystal X-ray diffractions illustrate that 1 crystallizes in the polar space group P21 at 130 K and 293 K. Closer inspections reveal that the partially disorder–order transformations of one propyl group in the dipropylammonium cation, as well as a distinct distortion of the terminal ethyl group, induced the structural phase transition. We believe that all these findings would spur the exploration of new structural phase transition compounds.

Graphical abstract: Reversible phase transition triggered by order–disorder transformations and distortions in dipropylammonium d-(+)-10-camphorsulfonate

Supplementary files

Article information

Article type
Paper
Submitted
01 Feb 2016
Accepted
10 Mar 2016
First published
10 Mar 2016

CrystEngComm, 2016,18, 2852-2856

Reversible phase transition triggered by order–disorder transformations and distortions in dipropylammonium D-(+)-10-camphorsulfonate

Y. Zhou, T. Chen, Z. Sun, S. Zhang, S. Zhao, C. Ji, C. Song and J. Luo, CrystEngComm, 2016, 18, 2852 DOI: 10.1039/C6CE00237D

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