A Breathing Zirconium Metal–Organic Framework with Reversible Loss of Crystallinity by Correlated Nanodomain Formation. Issue 10 (11th February 2016)

• Record Type: Journal Article
• Authors: Bueken, Bart; Vermoortele, Frederik; Cliffe, Matthew J.; Wharmby, Michael T.; Foucher, Damien; Wieme, Jelle; Vanduyfhuys, Louis; Martineau, Charlotte; Stock, Norbert; Taulelle, Francis; Van Speybroeck, Veronique; Goodwin, Andrew L.; De Vos, Dirk
• Is Part Of: Chemistry. Volume 22:Issue 10(2016)
• Page Start: 3264
• Page End: 3267
• Publication Date: 2016-02-11
• Subjects: dynamic porosity -- metal–organic frameworks -- phase transitions -- structure elucidation -- zirconium; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201600330
• Languages: English
• ISSNs: 0947-6539

Abstract

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. Abstract : Camouflaged from diffraction : The aliphatic isoreticular analogue of the well‐known MOF UiO‐66(Zr) undergoes a unique and reversible phase change upon guest removal. This change involves a topology‐dictated loss of long‐range order through the correlated formation of short‐range ordered nanodomains.