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Open AccessArticle

Multidimensional Transition Metal Complexes Based on 3-Amino-1H-1,2,4-triazole-5-carboxylic Acid: From Discrete Mononuclear Complexes to Layered Materials

1
Department of Chemistry, CICECO–Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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REQUIMTE/LAQV & Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
3
Department of Chemistry, University of Aveiro, QOPNA, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
4
Department of Organic and Macromolecular Chemistry, Ghent University, B-9000 Ghent, Belgium
*
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Dong-Sheng Li
Molecules 2015, 20(7), 12341-12363; https://doi.org/10.3390/molecules200712341
Received: 1 June 2015 / Revised: 22 June 2015 / Accepted: 25 June 2015 / Published: 7 July 2015
(This article belongs to the Special Issue Metal-Organic Frameworks: Chemistry and Applications)
The synthesis and structural characterization of five transition metal complexes with different dimensionality and incorporating residues of 3-amino-1H-1,2,4-triazole-5-carboxylic acid (H2atrc) is reported: [Zn(Hatrc)2(H2O)] (1), [Mn(Hatrc)2(H2O)2]·2H2O (2), [Fe2(Hatrc)4(OH)2]·6H2O (3), [Cd(Hatrc)2(H2O)]n (4), and [Mn(atrc)(H2O)]n·nH2O (5). These materials could be prepared from solution (13), diffusion (4), or hydrothermal reactions (5) with various anions and L:M ratios. Structural details were revealed by single crystal X-ray diffraction. The discrete units composing compounds 13, the polymeric 1D chain of 4 and the 2D layer of 5 are further extended into 3D supramolecular architectures through the formation of hydrogen bonds. View Full-Text
Keywords: 1,2,4-triazole; crystal structures; supramolecular organization 1,2,4-triazole; crystal structures; supramolecular organization
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Liu, B.; Fernandes, J.A.; Tomé, J.P.C.; Paz, F.A.A.; Cunha-Silva, L. Multidimensional Transition Metal Complexes Based on 3-Amino-1H-1,2,4-triazole-5-carboxylic Acid: From Discrete Mononuclear Complexes to Layered Materials. Molecules 2015, 20, 12341-12363.

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