| Literature DB >> 26865194 |
Bart Bueken1, Frederik Vermoortele1, Matthew J Cliffe2,3, Michael T Wharmby4,5, Damien Foucher6, Jelle Wieme7, Louis Vanduyfhuys7, Charlotte Martineau6, Norbert Stock4, Francis Taulelle6, Veronique Van Speybroeck7, Andrew L Goodwin2, Dirk De Vos8.
Abstract
The isoreticular analogue of the metal-organic framework UiO-66(Zr), synthesized with the flexible trans-1,4-cyclohexanedicarboxylic acid as linker, shows a peculiar breathing behavior by reversibly losing long-range crystalline order upon evacuation. The underlying flexibility is attributed to a concerted conformational contraction of up to two thirds of the linkers, which breaks the local lattice symmetry. X-ray scattering data are described well by a nanodomain model in which differently oriented tetragonal-type distortions propagate over about 7-10 unit cells.Entities:
Keywords: dynamic porosity; metal-organic frameworks; phase transitions; structure elucidation; zirconium
Year: 2016 PMID: 26865194 DOI: 10.1002/chem.201600330
Source DB: PubMed Journal: Chemistry ISSN: 0947-6539 Impact factor: 5.236