Abstract
Background: There has been a continuous interest in the development of luminescent gold(III) complexes as emitters for OLED applications in recent years.
Objective: To design and synthesize a series of luminescent bis-alkynylgold(III) complexes with bidentate C^N-type ligands and to compare their properties with related tridentate cyclometalated complexes.
Methods: A series of bis-alkynylgold(III) complexes with bidentate C^N-type ligands derived from 2-phenylpyridine and 7,8-benzoquinoline has been designed and synthesized. The photophysical properties of the complexes have been studied by electronic absorption and emission spectroscopies.
Results: All of the complexes were observed to exhibit rich photophysical and electrochemical properties. In particular, the complexes were strongly emissive at ambient conditions, showing vibronic-structured emission bands peaked at 433–557 nm in dichloromethane solutions at 298 K.
Conclusions: By comparing the structural features, luminescence properties and electrochemistry of the bidentate complexes with related tridentate C^N^C and C^N^N-type alkynylgold(III) complexes, a better understanding on the structure-property relationship of the alkynylgold(III) system has been obtained. Copyright © 2023 Chemical Society Located in Taipei and Wiley-VCH GmbH.
| Original language | English |
|---|---|
| Pages (from-to) | 1237-1251 |
| Journal | Journal of the Chinese Chemical Society |
| Volume | 70 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 2023 |
Citation
Au, V. K.-M., & Yam, V. W.-W. (2023). Luminescent bis-alkynylgold(III) complexes with bidentate cyclometalating ligands: A comparison study with related tridentate cyclometalated complexes. Journal of the Chinese Chemical Society, 70(5), 1237-1251. https://doi.org/10.1002/jccs.202300089Keywords
- Alkynyl
- Cyclometalating ligand
- Gold(III)
- Luminescence