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

作者：Schmieder P; Denysenko D; Grzywa M; Magdysyuk O; Volkmer D^*

来源：Dalton Transactions, 2016, 45(35): 13853-13862.

DOI：10.1039/c6dt02672a

The novel metal-organic framework CFA-8 (Coordination Framework Augsburg University-8), [Cu-2(tqpt)], containing the organic linker H-2-tqpt {H-2-tqpt = 6,6,14,14-tetramethyl-6,14-dihydroquinoxalino[2,3-b] phenazinebis-triazole}, has been synthesized. Reaction of H-2-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.

• 出版日期2016