Universität zu Köln

Werker, Melanie, Dolfus, Benedikt and Ruschewitz, Uwe ORCID: 0000-0002-6511-6894 (2013). Two Anhydrous Salts of Tetrafluoroterephthalic Acid (H(2)tF-BDC): K(2)tF-BDC and Rb(2)tF-BDC. Z. Anorg. Allg. Chem., 639 (14). S. 2487 - 2493. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1521-3749

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Abstract

Two new anhydrous salts of tetrafluoroterephthalic acid (H(2)tF-BDC), namely K(2)tF-BDC (1) and Rb(2)tF-BDC (2), were synthesized and structurally characterized. The crystal structure of 1 (I2/m, Z = 2) was solved and refined from X-ray single crystal data. K+ (CN = 8) is coordinated by six oxygen atoms of five different tF-BDC2- linkers and two fluorine atoms of two of these linkers, which connect the KO6F2 polyhedra to a 3D network. The crystal structure of 2 (P, Z = 1) was refined from X-ray powder diffraction data. It crystallizes in a structure type already known from Tl(2)tF-BDC. Rb+ (CN = 8) is also coordinated by six oxygen and two fluorine atoms. But six tF-BDC2- linkers are involved in the coordination. Again, a 3D network is formed. Both compounds can be obtained as single-phase samples. They are not porous and stable in air. The thermal stability was investigated by DTA/TG measurements. The decomposition starts at approx. 200 degrees C (1) and 230 degrees C (2). Their good solubility in water makes them interesting starting materials for the synthesis of new MOFs with the perfluorinated linker tF-BDC2-.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Werker, Melanie UNSPECIFIED UNSPECIFIED UNSPECIFIED Dolfus, Benedikt UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruschewitz, Uwe UNSPECIFIED orcid.org/0000-0002-6511-6894 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-472255
DOI:	10.1002/zaac.201300480
Journal or Publication Title:	Z. Anorg. Allg. Chem.
Volume:	639
Number:	14
Page Range:	S. 2487 - 2493
Date:	2013
Publisher:	WILEY-V C H VERLAG GMBH
Place of Publication:	WEINHEIM
ISSN:	1521-3749
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language METAL-ORGANIC FRAMEWORKS; COORDINATION POLYMERS; BRIDGING LIGAND; ADSORPTION; SYSTEMS Multiple languages Chemistry, Inorganic & Nuclear Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/47225