Spontaneous Water-Promoted Self-Aggregation of a Hydrophilic Gold(I) Complex Due to Ligand Sphere Rearrangement
Aggregating gold(I) complexes in solution through short aurophilic contacts promotes new photoluminescent deactivation pathways (aggregation-induced emission, AIE). The time dependence of spontaneous AIE is seldom studied. We examine the behavior of complex [Au(<i>N</i><sup>9</s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/28/15/5680 |
| _version_ | 1827731161256820736 |
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| author | Ainhoa Rodríguez-Gobernado Daniel Blasco Miguel Monge José M. López-de-Luzuriaga |
| author_facet | Ainhoa Rodríguez-Gobernado Daniel Blasco Miguel Monge José M. López-de-Luzuriaga |
| author_sort | Ainhoa Rodríguez-Gobernado |
| collection | DOAJ |
| description | Aggregating gold(I) complexes in solution through short aurophilic contacts promotes new photoluminescent deactivation pathways (aggregation-induced emission, AIE). The time dependence of spontaneous AIE is seldom studied. We examine the behavior of complex [Au(<i>N</i><sup>9</sup>-hypoxanthinate)(PTA)] (<b>1</b>) in an aqueous solution with the aid of variable-temperature NMR, time-resolved UV–Vis and photoluminescence spectroscopy, and PGSE NMR. The studies suggest that partial ligand scrambling in favor of the ionic [Au(PTA)<sub>2</sub>][Au(<i>N</i><sup>9</sup>-hypoxanthinate)<sub>2</sub>] pair followed by anion oligomerization takes place. The results are rationalized with the aid of computational calculations at the TD-DFT level of theory and IRI analysis of the electron density. |
| first_indexed | 2024-03-11T00:21:39Z |
| format | Article |
| id | doaj.art-8173747744534861918058bb9ffcb3d5 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-11T00:21:39Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-8173747744534861918058bb9ffcb3d52023-11-18T23:17:28ZengMDPI AGMolecules1420-30492023-07-012815568010.3390/molecules28155680Spontaneous Water-Promoted Self-Aggregation of a Hydrophilic Gold(I) Complex Due to Ligand Sphere RearrangementAinhoa Rodríguez-Gobernado0Daniel Blasco1Miguel Monge2José M. López-de-Luzuriaga3Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios 53, 26006 Logroño, SpainDepartamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios 53, 26006 Logroño, SpainDepartamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios 53, 26006 Logroño, SpainDepartamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Madre de Dios 53, 26006 Logroño, SpainAggregating gold(I) complexes in solution through short aurophilic contacts promotes new photoluminescent deactivation pathways (aggregation-induced emission, AIE). The time dependence of spontaneous AIE is seldom studied. We examine the behavior of complex [Au(<i>N</i><sup>9</sup>-hypoxanthinate)(PTA)] (<b>1</b>) in an aqueous solution with the aid of variable-temperature NMR, time-resolved UV–Vis and photoluminescence spectroscopy, and PGSE NMR. The studies suggest that partial ligand scrambling in favor of the ionic [Au(PTA)<sub>2</sub>][Au(<i>N</i><sup>9</sup>-hypoxanthinate)<sub>2</sub>] pair followed by anion oligomerization takes place. The results are rationalized with the aid of computational calculations at the TD-DFT level of theory and IRI analysis of the electron density.https://www.mdpi.com/1420-3049/28/15/5680gold(I)nucleobasesaurophilicityaggregation-induced emissionnuclear magnetic resonancephotoluminescence |
| spellingShingle | Ainhoa Rodríguez-Gobernado Daniel Blasco Miguel Monge José M. López-de-Luzuriaga Spontaneous Water-Promoted Self-Aggregation of a Hydrophilic Gold(I) Complex Due to Ligand Sphere Rearrangement Molecules gold(I) nucleobases aurophilicity aggregation-induced emission nuclear magnetic resonance photoluminescence |
| title | Spontaneous Water-Promoted Self-Aggregation of a Hydrophilic Gold(I) Complex Due to Ligand Sphere Rearrangement |
| title_full | Spontaneous Water-Promoted Self-Aggregation of a Hydrophilic Gold(I) Complex Due to Ligand Sphere Rearrangement |
| title_fullStr | Spontaneous Water-Promoted Self-Aggregation of a Hydrophilic Gold(I) Complex Due to Ligand Sphere Rearrangement |
| title_full_unstemmed | Spontaneous Water-Promoted Self-Aggregation of a Hydrophilic Gold(I) Complex Due to Ligand Sphere Rearrangement |
| title_short | Spontaneous Water-Promoted Self-Aggregation of a Hydrophilic Gold(I) Complex Due to Ligand Sphere Rearrangement |
| title_sort | spontaneous water promoted self aggregation of a hydrophilic gold i complex due to ligand sphere rearrangement |
| topic | gold(I) nucleobases aurophilicity aggregation-induced emission nuclear magnetic resonance photoluminescence |
| url | https://www.mdpi.com/1420-3049/28/15/5680 |
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