Universität zu Köln

Christoffels, Ronja and Ruschewitz, Uwe ORCID: 0000-0002-6511-6894 (2020). Two New Coordination Polymers with UO22+ Units and Fluorinated Aromatic Carboxylate Linkers. Z. Anorg. Allg. Chem., 646 (3). S. 156 - 162. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1521-3749

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Abstract

A new coordination polymer, namely (2)(infinity)[((UO2)-O-VI)(2)(L)(DMA)(3)] (1) (C2/c, Z = 8) with L = 4-monofluorobiphenyl-3,3',5,5'-tetracarboxylate (4-mF-BPTC4-) was synthesized by solvothermal reaction in DMA (N,N'-dimethylacetamide). Its crystal structure was solved and refined from single-crystal X-ray diffraction data. It contains two different types of UO22+ units, which are connected by fluorinated tetracarboxylate ligands to form a layered structural motif. Three DMA molecules are coordinated to one UO22+ unit (CN = 7), whereas the other is solely coordinated by oxygen atoms of the tetracarboxylate linkers (CN = 8). The layers are held together by van der Waals interactions, which do not include any hydrogen bonds. An isostructural coordination polymer is formed with L' = 4,4'-difluorobiphenyl-3,3',5,5'-tetracarboxylate (4,4'-dF-BPTC4-), as confirmed by XRPD (X-ray powder diffraction), IR/Raman spectroscopy and elemental analysis. The DSC/TG analyses of both compounds show that they are stable up to approx. 300 degrees C in an inert argon atmosphere.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Christoffels, Ronja UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruschewitz, Uwe UNSPECIFIED orcid.org/0000-0002-6511-6894 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-348401
DOI:	10.1002/zaac.201900302
Journal or Publication Title:	Z. Anorg. Allg. Chem.
Volume:	646
Number:	3
Page Range:	S. 156 - 162
Date:	2020
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 VERSATILE LINKING LIGAND; TETRAFLUOROTEREPHTHALIC ACID; ORGANIC FRAMEWORKS; CRYSTAL-STRUCTURES; BOND LENGTHS; URANYL; CONSTRUCTION; SUPERSTRUCTURE; COMPLEXES; SALTS Multiple languages Chemistry, Inorganic & Nuclear Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/34840