Photoluminescent coordination polymers based on group 12 metals and 1h-indazole-6-carboxylic acid.
Two new coordination polymers (CPs) based on Zn(II) and Cd(II) and 1H-indazole-6-carboxylic acid (H L) of general formulae [Zn(L)(H O)] (1) and [Cd (HL) ] (2) have been synthe-sized and fully characterized by elemental analyses, Fourier transformed infrared spectroscopy and single crystal X-ray diff...
| Autores: | , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/359705 |
| Acceso en línea: | http://hdl.handle.net/10261/359705 |
| Access Level: | acceso abierto |
| Palabra clave: | group 12 metals 1H-indazole-6-carboxylic acid coordination polymer photoluminescence properties |
| Sumario: | Two new coordination polymers (CPs) based on Zn(II) and Cd(II) and 1H-indazole-6-carboxylic acid (H L) of general formulae [Zn(L)(H O)] (1) and [Cd (HL) ] (2) have been synthe-sized and fully characterized by elemental analyses, Fourier transformed infrared spectroscopy and single crystal X-ray diffraction. The results indicate that compound 1 possesses double chains in its structure whereas 2 exhibits a 3D network. The intermolecular interactions, including hydrogen bonds, C–H···π and π···π stacking interactions, stabilize both crystal structures. Photoluminescence (PL) properties have shown that compounds 1 and 2 present similar emission spectra compared to the free-ligand. The emission spectra are also studied from the theoretical point of view by means of time-dependent density-functional theory (TD-DFT) calculations to confirm that ligand-centred π-π* electronic transitions govern emission of compound 1 and 2. Finally, the PL properties are also studied in aqueous solution to explore the stability and emission capacity of the compounds. |
|---|