CFA-14 - a perfluorinated metal-organic framework with linear 1-D CoII-chains showing temperature dependent spin-chain magnetic orderingElectronic supplementary information (ESI) available: Crystallographic data, IR- and DRIFT-IR and gas sorption measurements for CFA-14. CCDC 1811523. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c8dt02841a

• Main Authors: Fritzsche, J, Grzywa, M, Denysenko, D, Reschke, S, Sugimoto, K, Krug von Nidda, H.-A, Schmidtner, D, Volkmer, D
• Format: Journal Article
• Published: 18.09.2018
• ISSN: 1477-9226; 1477-9234
• DOI: 10.1039/c8dt02841a

The synthesis and crystal structure of the perfluorinated metal-organic framework (MOF) CFA-14 (Coordination Framework Augsburg University-14), Co II 2 (tfpb)(OH) 2 (H 2 -tfpb = 1,4-bis(3,5-bis(trifluoromethyl)-1 H -pyrazole-4-yl)benzene) are described. The cobalt-containing MOF crystallizes in the tetragonal crystal system within the space group I 4 1 / acd (no. 142) and the unit cell parameters are as follows: a = 20.3213(11) Å, c = 12.4045(8) Å, V = 5122.5(6) Å 3 . CFA-14 features a porous two-fold interpenetrated 3-D microporous structure constructed from 1-D chains of cobalt( ii ) ions expanding in the c -direction, bridged by OH − groups and tfpb 2− ligands. The structure exhibits quadratic channels running along the c -axis. CFA-14 is fully characterized by synchrotron single crystal X-ray diffraction, thermogravimetric analysis, variable temperature powder X-ray diffraction, IR- and UV-Vis spectroscopy, photoluminescence and gas sorption measurements. Moreover, the magnetic properties of CFA-14 are examined via SQUID measurements. The synthesis and crystal structure of the perfluorinated MOF CFA-14 Co II 2 (tfpb)(OH) 2 (H 2 -tfpb = 1,4-bis(3,5-bis(trifluoromethyl)-1 H -pyrazole-4-yl)benzene) are described.