Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties
A new 2,7,10,15-tetraethynyldibenzo[g,p]chrysene ligand (<b>1</b>) and two tetranuclear gold(I) derivatives containing PPh<sub>3</sub> (<b>3</b>) and PMe<sub>3</sub> (<b>4</b>) phosphines were synthesized and characterized by <sup>1&l...
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| Format: | Article |
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MDPI AG
2020-02-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/25/4/949 |
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| author | Francisco J. Caparrós Mani Outis Yongsik Jung Hyeonho Choi João Carlos Lima Laura Rodríguez |
| author_facet | Francisco J. Caparrós Mani Outis Yongsik Jung Hyeonho Choi João Carlos Lima Laura Rodríguez |
| author_sort | Francisco J. Caparrós |
| collection | DOAJ |
| description | A new 2,7,10,15-tetraethynyldibenzo[g,p]chrysene ligand (<b>1</b>) and two tetranuclear gold(I) derivatives containing PPh<sub>3</sub> (<b>3</b>) and PMe<sub>3</sub> (<b>4</b>) phosphines were synthesized and characterized by <sup>1</sup>H and <sup>31</sup>P NMR, IR spectroscopy, and high-resolution mass spectrometry. The compounds were studied in order to analyze the effect of the introduction of gold(I) on the supramolecular aggregation and photophysical properties. Absorption and emission spectra displayed broad bands due to the establishment of π π interactions as an indication of intermolecular contacts and the formation of aggregates. A decrease of the recorded quantum yield (QY) of the gold(I) derivatives was observed compared to the uncomplexed ligand. The introduction of the complexes into poly methyl methacrylate (PMMA) and Zeonex 480R matrixes was analyzed, and an increase of the measured QY of <b>4</b> in Zeonex was observed. No phosphorescent emission was detected. |
| first_indexed | 2024-04-13T17:34:31Z |
| format | Article |
| id | doaj.art-afc7aa679aae47f6a82016f9c24b3289 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-04-13T17:34:31Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-afc7aa679aae47f6a82016f9c24b32892022-12-22T02:37:28ZengMDPI AGMolecules1420-30492020-02-0125494910.3390/molecules25040949molecules25040949Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical PropertiesFrancisco J. Caparrós0Mani Outis1Yongsik Jung2Hyeonho Choi3João Carlos Lima4Laura Rodríguez5Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainLAQV-REQUIMTE, Departamento de Química, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, PortugalSamsung Advanced Institute of Technology, Samsung Electronics Co. Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, KoreaSamsung Advanced Institute of Technology, Samsung Electronics Co. Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, KoreaLAQV-REQUIMTE, Departamento de Química, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, PortugalDepartament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, SpainA new 2,7,10,15-tetraethynyldibenzo[g,p]chrysene ligand (<b>1</b>) and two tetranuclear gold(I) derivatives containing PPh<sub>3</sub> (<b>3</b>) and PMe<sub>3</sub> (<b>4</b>) phosphines were synthesized and characterized by <sup>1</sup>H and <sup>31</sup>P NMR, IR spectroscopy, and high-resolution mass spectrometry. The compounds were studied in order to analyze the effect of the introduction of gold(I) on the supramolecular aggregation and photophysical properties. Absorption and emission spectra displayed broad bands due to the establishment of π π interactions as an indication of intermolecular contacts and the formation of aggregates. A decrease of the recorded quantum yield (QY) of the gold(I) derivatives was observed compared to the uncomplexed ligand. The introduction of the complexes into poly methyl methacrylate (PMMA) and Zeonex 480R matrixes was analyzed, and an increase of the measured QY of <b>4</b> in Zeonex was observed. No phosphorescent emission was detected.https://www.mdpi.com/1420-3049/25/4/949golddibenzo[g,p]chryseneheavy atom effectluminescence matrixes |
| spellingShingle | Francisco J. Caparrós Mani Outis Yongsik Jung Hyeonho Choi João Carlos Lima Laura Rodríguez Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties Molecules gold dibenzo[g,p]chrysene heavy atom effect luminescence matrixes |
| title | Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties |
| title_full | Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties |
| title_fullStr | Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties |
| title_full_unstemmed | Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties |
| title_short | Luminescent Tetranuclear Gold(I) Dibenzo[g,p]chrysene Derivatives: Effect of the Environment on Photophysical Properties |
| title_sort | luminescent tetranuclear gold i dibenzo g p chrysene derivatives effect of the environment on photophysical properties |
| topic | gold dibenzo[g,p]chrysene heavy atom effect luminescence matrixes |
| url | https://www.mdpi.com/1420-3049/25/4/949 |
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