Universität zu Köln

Krautwurst, John, Lamann, Rainer and Ruschewitz, Uwe ORCID: 0000-0002-6511-6894 (2017). Reproducible Synthesis of a Monofluorinated Trimesate: A Versatile Linking Ligand for the Construction of Lanthanide Coordination Polymers. Z. Anorg. Allg. Chem., 643 (21). S. 1397 - 1406. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1521-3749

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Abstract

The synthesis of monofluorinated trimesic acid (H(3)mfBTC = 2-fluoro-1,3,5-benzene-tricarboxylic acid) described in the literature leads in fact to its monopotassium salt K(H(2)mfBTC) (1), which was identified by a single crystal structure analysis (Pc, Z = 2). It is obtained as a single-phase product and shows good solubility in water so that from aqueous solutions fourteen new coordination polymers with Ln(III) cations were synthesized and structurally characterized. Depending on the size of the cations three different structure types with different water contents were observed. For Ln(III) = La3+ - Nd3+ and Sm3+ - Gd3+ the composition (1)(infinity)[Ln(III)(mfBTC)(3/3)(H2O)(6)] was found and confirmed by a structural analysis (Cc, Z = 4; CN = 9). For Ln(III) = Tb3+ - Ho3+ the composition (2)(infinity)[Ln(III)(mfBTC)(3/3)(H2O)(3)]center dot H2O was obtained and confirmed by X-ray single crystal structure analysis (C2/c, Z = 8; CN = 9). Finally, for Ln(III) = Er3+ - Lu3+ the composition (1)(infinity)[Ln(III)(mfBTC)(2/2)(H2O)(5)]center dot 2H(2)O was found and again confirmed by X-ray single crystal structure analysis (P (1) over bar, Z = 2; CN = 8). Subtle changes of the cationic radii lead to different coordination spheres and thus to different compositions. The thermal stability of selected compounds representing all three structure types was investigated by DTA/TGA measurements. All compounds are stable up to at least 100 degrees C, before the release of water molecules starts. The Eu-III and Tb-III compounds show the expected intense red and green luminescence.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Krautwurst, John UNSPECIFIED UNSPECIFIED UNSPECIFIED Lamann, Rainer UNSPECIFIED UNSPECIFIED UNSPECIFIED Ruschewitz, Uwe UNSPECIFIED orcid.org/0000-0002-6511-6894 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-211133
DOI:	10.1002/zaac.201700108
Journal or Publication Title:	Z. Anorg. Allg. Chem.
Volume:	643
Number:	21
Page Range:	S. 1397 - 1406
Date:	2017
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 METAL-ORGANIC FRAMEWORKS; EFFECTIVE IONIC-RADII; BRIDGING LIGAND; TETRAFLUOROTEREPHTHALATE; LUMINESCENCE; ADSORPTION; COMPLEXES; ACID Multiple languages Chemistry, Inorganic & Nuclear Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/21113