Guest-Induced Breathing Effect in a Flexible Molecular Crystal

Yujie Sheng; Qibin Chen; Junyao Yao; Yunxiang Lu; Honglai Liu; Sheng Dai

doi:10.1002/anie.201510637

Guest-Induced Breathing Effect in a Flexible Molecular Crystal

Angew Chem Int Ed Engl. 2016 Mar 1;55(10):3378-81. doi: 10.1002/anie.201510637. Epub 2016 Feb 2.

Authors

Yujie Sheng¹, Qibin Chen², Junyao Yao¹, Yunxiang Lu¹, Honglai Liu³, Sheng Dai^{4

5}

Affiliations

¹ State Key Laboratory of Chemical Engineering, Department of Chemistry, East China University of Science and Technology, Shanghai, 200237, P.R. China.
² State Key Laboratory of Chemical Engineering, Department of Chemistry, East China University of Science and Technology, Shanghai, 200237, P.R. China. qibinchen@ecust.edu.cn.
³ State Key Laboratory of Chemical Engineering, Department of Chemistry, East China University of Science and Technology, Shanghai, 200237, P.R. China. hlliu@ecust.edu.cn.
⁴ Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA. dais@ornl.gov.
⁵ Department of Chemistry, University of Tennessee, Knoxville, TN, 37996-1600, USA. dais@ornl.gov.

PMID: 26836312
DOI: 10.1002/anie.201510637

Abstract

By introducing a flexible component into a molecular building block, we present an unprecedented alkyl-decorated flexible crystalline material with a breathing behavior. Its selective adsorption is derived from the breathing effect induced by a guest triggered alkyl transformation. This feature allows the crystal to take up 2.5 mmol g(-1) of chloroform with high adsorption selectivity (CHCl3 /EA >2000 for example), implying a potential application in sorption separation and chemical sensors.

Keywords: chloroform; host-guest systems; porous molecular crystals; preferential adsorption; self-assembly.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.