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|
| Type |
Poster Presentation |
| Area |
Industrial Chemistry |
| Room No. |
Event Hall |
| Time |
4월 19일 (목요일) 11:00~12:30 |
| Code |
IND.P-15 |
| Subject |
Synthesis, Structure, and Photophysical Properties of phenylimidazolinato iridium complexes: Inhibiting d-d deactivation pathway of Ir(III) complexes with bulky terphenyl substituents |
| Authors |
So-Yoen Kim, Jin-Hyoung Kim, Chul Hoon Kim, Sang Ook Kang, Ho-Jin Son*
Department of Advanced Materials Chemistry, Korea University, Korea
|
| Abstract |
Series of six terphenyl-modified phenylimidazolinato Ir(III) complexes with various substituents at 4-position of phenyl ring and 5-position of terphenyl ring were prepared. We have come up with the idea of implementing sterically bulky ligand that can help the metal-centered triplet state unstable; this brings us to use the terphenyl ligands. It was found that the bulkiness control of substituent on imidazole ring plays an important role in emission behavior of Ir-complexes. For example, the iridium complexes bearing bulky terphenyl group exhibited higher quantum yield. We performed theoretical quantum chemical calculations and measured experimental temperature dependent emission lifetime to explain the importance of bulky substitution in designing blue emissive Ir(III)-complex. Implications of the present observations and mechanism are discussed in detail. |
| E-mail |
vhfhfl0317@naver.com |
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121st General Meeting of the KCS