Universität zu Köln

Stastny, Carina, Dolfus, Benedikt, Brombach, Christiane T., Dresen, Dominique, Disch, Sabrina ORCID: 0000-0002-4565-189X, Glaum, Robert and Ruschewitz, Uwe ORCID: 0000-0002-6511-6894 (2018). New 2D and 3D Coordination Polymers by Dehydration of (1)(infinity)[M-II(tF-BDC)(H2O)(4)] (M-II = Zn2+, Co2+, Ni2+ and tF-BDC2- = Tetrafluoroterephthalate). Z. Anorg. Allg. Chem., 644 (22). S. 1423 - 1431. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1521-3749

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Abstract

By dehydration of the known coordination polymers (1)(infinity)[M-II(tF-BDC)(H2O)(4)] (M-II = Co2+, Zn2+ and tF-BDC2- = tetrafluoroterephthalate) the homoleptic anhydrous coordination networks (3)(infinity)[M-II(tF-BDC)] were obtained as polycrystalline powders. Their crystal structures (C2/c, Z = 4) were solved and refined by means of synchrotron powder diffraction data. These structures are characterized by [(MO4)-O-II] tetrahedra, which are connected by the tF-BDC2- linkers to form a 3D non-porous coordination network. The dehydration leads to a change from a [(MO6)-O-II] octahedral coordination in the hydrate to a tetrahedral coordination sphere in the anhydrous compound. For the cobalt compounds this leads to a color change from pale rose to deep blue upon heating and dehydration, which was analyzed by means of UV/Vis/NIR spectroscopy and measurements of the magnetic susceptibilities. In contrast, (1)(infinity)[Ni-II(tF-BDC)(H2O)(4)] can only partly be dehydrated to form (2)(infinity)[Ni-II(tF-BDC)(H2O)(2)] (P1, Z = 1) with retention of the octahedral [(NiO6)-O-II] coordination in both compounds. At higher temperatures the tF-BDC2- linker starts to decompose, before a complete dehydration can take place.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Stastny, Carina UNSPECIFIED UNSPECIFIED UNSPECIFIED Dolfus, Benedikt UNSPECIFIED UNSPECIFIED UNSPECIFIED Brombach, Christiane T. UNSPECIFIED UNSPECIFIED UNSPECIFIED Dresen, Dominique UNSPECIFIED UNSPECIFIED UNSPECIFIED Disch, Sabrina UNSPECIFIED orcid.org/0000-0002-4565-189X UNSPECIFIED Glaum, Robert UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruschewitz, Uwe UNSPECIFIED orcid.org/0000-0002-6511-6894 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-164941
DOI:	10.1002/zaac.201800228
Journal or Publication Title:	Z. Anorg. Allg. Chem.
Volume:	644
Number:	22
Page Range:	S. 1423 - 1431
Date:	2018
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 Physical Chemistry
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language METAL-ORGANIC FRAMEWORKS; DIFFRACTION; LUMINESCENCE Multiple languages Chemistry, Inorganic & Nuclear Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/16494