Universität zu Köln

Dolfus, Benedikt and Ruschewitz, Uwe ORCID: 0000-0002-6511-6894 (2014). [Li-2(tF-BDC)(DMF)(2)]: A New Alkali Metal Salt of Tetrafluoroterephthalic Acid (H(2)tF-BDC). Z. Anorg. Allg. Chem., 640 (7). S. 1235 - 1239. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1521-3749

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Abstract

The DMF solvate of lithium tetrafluoroterephthalate [Li-2(tF-BDC)(DMF)(2)] (H(2)tF-BDC = tetrafluoroterephthalic acid) was synthesized and structurally characterized from X-ray single crystal data (Pbcn, Z = 8). Li+ (CN = 4) is coordinated tetrahedrally by four oxygen atoms of three different tF-BDC2- linkers and one DMF molecule. The LiO4 tetrahedra are connected by common vertices to chains, which are bridged by tF-BDC2- linkers to form a 2D polymeric unit. The DMF molecules are oriented perpendicular to these polymeric sheets, which are stacked along [100] in an AB fashion and held together by weak van der Waals interactions. Single crystals of [Li-2(tF-BDC)(DMF)(2)] were synthesized by precipitation from an ethanol/DMF solvent mixture, but single-phase samples were only obtained by a mechanochemical approach starting from lithium acetate and H(2)tF-BDC by adding DMF. The thermal stability of [Li-2(tF-BDC)(DMF)(2)] was investigated by DTA/TG measurements. The (endothermic) decomposition starts at 170 degrees C and is followed by a second exothermic decomposition at approx. 300 degrees C. The weight losses are in good agreement with a release of DMF and CO2. LiF is identified in the residue after heating at 500 degrees C.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Dolfus, Benedikt UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruschewitz, Uwe UNSPECIFIED orcid.org/0000-0002-6511-6894 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-436570
DOI:	10.1002/zaac.201400006
Journal or Publication Title:	Z. Anorg. Allg. Chem.
Volume:	640
Number:	7
Page Range:	S. 1235 - 1239
Date:	2014
Publisher:	WILEY-V C H VERLAG GMBH
Place of Publication:	WEINHEIM
ISSN:	1521-3749
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Chemistry > Institute of Inorganic Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ORGANIC FRAMEWORKS; COORDINATION POLYMERS; BRIDGING LIGAND; ADSORPTION; DESIGN Multiple languages Chemistry, Inorganic & Nuclear Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/43657