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Thermochemically Stable Liquid-Crystalline Gold(I) Complexes Showing Enhanced Room Temperature Phosphorescence
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kuroda, Yuki Nakamura, Shin-Ya Srinivas, Katam Sathyanarayana, Arruri Prabusankar, Ganesan Hisano, Kyohei Tsutsumi, Osamu |
| Copyright Year | 2019 |
| Abstract | Gold(I) complexes are some of the most attractive materials for generating aggregation-induced emission (AIE), enabling the realization of novel light-emitting applications such as chemo-sensors, bio-sensors, cell imaging, and organic light-emitting diodes (OLEDs). In this study, we propose a rational design of luminescent gold complexes to achieve both high thermochemical stability and intense room temperature phosphorescence, which are desirable features in practical luminescent applications. Here, a series of gold(I) complexes with ligands of N-heterocyclic carbene (NHC) derivatives and/or acetylide were synthesized. Detailed characterization revealed that the incorporation of NHC ligands could increase the molecular thermochemical stability, as the decomposition temperature was increased to ~300 °C. We demonstrate that incorporation of both NHC and acetylide ligands enables us to generate gold(I) complexes exhibiting both high thermochemical stability and high room-temperature phosphorescence quantum yield (>40%) under ambient conditions. Furthermore, we modified the length of alkoxy chains at ligands, and succeeded in synthesizing a liquid crystalline gold(I) complex while maintaining the relatively high thermochemical stability and quantum yield. |
| Starting Page | 227 |
| Ending Page | 227 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.3390/cryst9050227 |
| Volume Number | 9 |
| Alternate Webpage(s) | https://res.mdpi.com/crystals/crystals-09-00227/article_deploy/crystals-09-00227-s001.pdf?attachment=1&filename= |
| Alternate Webpage(s) | https://res.mdpi.com/crystals/crystals-09-00227/article_deploy/crystals-09-00227.pdf?attachment=1&filename= |
| Alternate Webpage(s) | https://doi.org/10.3390/cryst9050227 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |