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A structurally flexible triazolate-based metal–organic framework featuring coordinatively unsaturated copper( i ) sites

DOI: 10.1039/C6DT02672A DOI Help

Authors: P. Schmieder (Augsburg University) , D. Denysenko (Augsburg University) , M. Grzywa (Augsburg University) , O. Magdysyuk (Diamond Light Source) , D. Volkmer (Augsburg University)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Dalton Trans. , VOL 45 , PAGES 13853 - 13862

State: Published (Approved)
Published: August 2016
Diamond Proposal Number(s): 12163

Abstract: The novel metal–organic framework CFA-8 (Coordination Framework Augsburg University-8), [Cu2(tqpt)], containing the organic linker H2-tqpt {H2-tqpt = 6,6,14,14-tetramethyl-6,14-dihydroquinoxalino[2,3-b]phenazinebis-triazole}, has been synthesized. Reaction of H2-tqpt and anhydrous CuCl2 in N,N-dimethylacetamide (DMA) yields CFA-8 as orange crystals with lenticular shape. This framework shows a reversible breathing effect and is robust upon solvent removal. It has been characterized by single-crystal and powder X-ray diffraction, TGA, IR spectroscopy and gas sorption measurements. CO adsorption isotherms show that Cu(I) sites in this framework are able to bind carbon monoxide forming a weak complex which has been additionally characterized by IR spectroscopy and synchrotron powder X-ray diffraction measurements.

Subject Areas: Materials, Chemistry

Instruments: I12-JEEP: Joint Engineering, Environmental and Processing