A luminescent double helical gold(i)-thiophenolate coordination polymer obtained by hydrothermal synthesis or by thermal solid-state amorphous-to-crystalline isomerization
- Lavenn, C. 2
- Okhrimenko, L. 2
- Guillou, N. 3
- Monge, M. 1
- Ledoux, G. 4
- Dujardin, C. 4
- Chiriac, R. 5
- Fateeva, A. 5
- Demessence, A. 2
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1
Universidad de La Rioja
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2
Institute of Researches on Catalysis and Environment in Lyon
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Institute of Researches on Catalysis and Environment in Lyon
Villeurbanne, Francia
- 3 Institut Lavoisier de Versailles (ILV), UMR CNRS 8180, Université de Versailles Saint-Quentin-en-Yvelines, Versailles, France
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4
Institut Lumière Matière
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5
Laboratoire des Multimatériaux et Interfaces
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ISSN: 2050-7526
Ano de publicación: 2015
Volume: 3
Número: 16
Páxinas: 4115-4125
Tipo: Artigo
beta Ver similares en nube de resultadosOutras publicacións en: Journal of Materials Chemistry C . Materials for optical, magnetic and electronic devices
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Resumo
A gold(i)-thiophenolate coordination polymer, [Au(SPh)]<inf>n</inf>, has been synthesized by employing hydrothermal conditions at 120 °C. This new synthesis led to isolate highly crystalline compound and to solve its structure from powder X-ray diffraction patterns. The compound forms double interpenetrated helical chains stabilized through C-H⋯π and aurophilic bonds. The solid is phosphorescent at room temperature and in the solid-state with a quantum yield of around 5%. Thanks to DFT calculations, the emission is attributed to a Ligand-to-Metal-Metal Charge Transfer (LMMCT) transition with a small contribution from a Metal Centered (MC) transition. In addition to this hydrothermal reaction, it is possible to obtain this [Au(SPh)]<inf>n</inf> coordination polymer by a two-step synthesis which is a thermally-induced solid-state amorphous-to crystalline isomerization. This transition has been followed by powder X-ray diffraction, scanning electron microscopy, differential scanning calorimetry and also from the appearance of phosphorescence upon heating. This journal is © The Royal Society of Chemistry 2015.