|
|
| Type |
Poster Presentation |
| Area |
Inorganic Chemistry |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 19일 (목요일) 11:00~12:30 |
| Code |
INOR.P-25 |
| Subject |
Fluorescence Quenching Effect using Sandwich Shape Zn(II) Complex Containing Trisilane Ligand |
| Authors |
SANGSEOK LEE, Ok-Sang Jung*
Department of Chemistry, Pusan National University, Korea
|
| Abstract |
Self-assembly of Zn(ClO4)2 with 1,3,5-tris(dimethyl(pyridin-3-yl)silyl)benzene (L) as a new C3-symmetric tridentate N-donor gives rise to a discrete sandwich-shaped M3L2 architecture, [Zn3(μ-OH)3L2](ClO4)3·4CH3CN·2H2O. Its blue photoluminescence is significantly quenched only by CH2I2 among the various small molecules, CH2Cl2, CH2Br2, CHCl3, 1,2-dichloroethane, EtOH, CH3CN, benzene, toluene, and phenol.
The sandwich-shaped M3L2 Zn(II) complex has interesting structural features, and its strong blue photo-luminescence efficiently recognizes the CH2I2 molecule. Although the photo-response is still far from suitable for practical applications, the uniquely shaped complex, based on the novel ligand, is promising as a photoluminescent sensor for specific small molecules. According to the results, the fluorescence quenching follows the dynamic quenching mechanism. These results could provide important clues to the design of capsule-like self-assemblies having potential catalyst, sensor, and recognition applications. Additional and more systematic studies, for example on the synthesis and coordination frameworks of related ligands, are in progress.
|
| E-mail |
sslee1@pusan.ac.kr |
|
120th General Meeting of the KCS