New aqua-fluoride and fluoride indium(III) complexes with monodentate-coordinated molecules of 4-amino-1,2,4-triazole. Synthesis, crystal structure, and thermogravimetry, DSC, and 19F,1H NMR study
| Autor: | Vera B. Logvinova, E. B. Merkulov, Andrey V. Gerasimenko, V. Ya. Kavun, Ruven L. Davidovich, M. M. Polyantsev |
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| Rok vydání: | 2019 |
| Předmět: |
Coordination sphere
Denticity Hydrogen bond Chemistry Ionic bonding 02 engineering and technology Crystal structure 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials Inorganic Chemistry Thermogravimetry Crystallography Materials Chemistry Ceramics and Composites Proton NMR Molecule Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Journal of Solid State Chemistry. 277:548-555 |
| ISSN: | 0022-4596 |
| Popis: | A molecular aqua-fluoride complex of indium(III) InF3(H2O)(C2H4N4)2 (I) has been synthesized for the first time, along with its anhydrous analogue – InF3(C2H4N4)2 (II), which has been obtained by thermal dehydration of I. The crystal structure of I is formed by molecular complexes [InF3(H2O)(C2H4N4)2] linked through O–H⋯F and N–H⋯F hydrogen bonds. The structure of the compound II appeared to be chainlike; linear chains of the composition [ I N F 3 ( C 2 H 4 H 4 ) 2 ] 0 ∞ 1 are formed as a result of linking the isolated molecules of the complexes I by In–F–In bridge bonds, in which vacancies of the removed H2O molecules are occupied by F atoms of the neighboring molecules. The isolated chains are linked into a three-dimensional framework by N–H⋯F hydrogen bonds. In both compounds, In is coordinated by two neutral molecules of 4-amino-1,2,4-triazole. A distinctive feature of the InF3(H2O)(C2H4N4)2 compound is the presence of three different ligands in the coordination sphere of the indium atom: fluorine and, molecules of H2O and 4-amino-1,2,4-triazole.The thermal behavior and character of ionic motions have been investigated by means of thermogravimetry (TG, DTG, DTA), DSC and 19F,1H NMR spectroscopy. |
| Databáze: | OpenAIRE |
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