Issue 10, 2016

The guest-dependent thermal response of the flexible MOF Zn2(BDC)2(DABCO)

Abstract

The guest-dependent thermal response of the flexible MOF Zn2(BDC)2(DABCO) (1) has been studied. A series of temperature-dependent single crystallographic analyses revealed inherent structural thermal responses of 1. The guest-free framework 1 exhibited interesting thermal responses including anisotropic thermal expansion (negative thermal expansion (NTE) along the a- and b-axes, positive thermal expansion (PTE) along the c-axis) and disorder–order phase transition. In addition, inclusion of guest molecules (DMF and benzene) brought distinct thermal responses to 1 from host–guest interactions. 1·4DMF showed altered thermal responses, presenting disorder–order phase transitions at a higher temperature and PTE along the a- and b-axes. Meanwhile, 1·3benzene displayed a quite different type of thermal response such as a hinge like motion (breathing) without a symmetry change.

Graphical abstract: The guest-dependent thermal response of the flexible MOF Zn2(BDC)2(DABCO)

Supplementary files

Article information

Article type
Paper
Submitted
23 sep 2015
Accepted
15 okt 2015
First published
15 okt 2015

Dalton Trans., 2016,45, 4187-4192

The guest-dependent thermal response of the flexible MOF Zn2(BDC)2(DABCO)

Y. Kim, R. Haldar, H. Kim, J. Koo and K. Kim, Dalton Trans., 2016, 45, 4187 DOI: 10.1039/C5DT03710G

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