Spring-like motion caused large anisotropic thermal expansion in nonporous M(eim)2 (M = Zn, Cd)

Zhanning Liu; Chenxi Liu; Qiang Li; Jun Chen; Xianran Xing

doi:10.1039/c7cp03937a

Spring-like motion caused large anisotropic thermal expansion in nonporous M(eim)₂ (M = Zn, Cd)

Phys Chem Chem Phys. 2017 Sep 20;19(36):24436-24439. doi: 10.1039/c7cp03937a.

Authors

Zhanning Liu¹, Chenxi Liu, Qiang Li, Jun Chen, Xianran Xing

Affiliation

¹ Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, China. Xing@ustb.edu.cn.

PMID: 28730211
DOI: 10.1039/c7cp03937a

Abstract

Two nonporous coordination polymers were found to possess large anisotropic thermal expansion, which was derived from the flexible structures. A "spring-like" thermal motion was proposed to illustrate the mechanism. Compound Cd(eim)₂ (eim = 2-ethylimidazole) possesses large linear and reversible thermal expansion properties and the emission intensity shows a linear decrease with temperature, making it a candidate for thermo-responsive materials.