Synthesis and assembly with mesoporous silica MCM-48 of platinum(II) porphyrin complexes bearing carbazyl groups: spectroscopic and oxygen sensing properties |
| |
Authors: | Huo Cheng Zhang Huidong Zhang Hongyu Zhang Houyu Yang Bing Zhang Ping Wang Yue |
| |
Affiliation: | Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China. |
| |
Abstract: | The synthesis and spectroscopic characterization of a series of luminescent platinum meso-tetrakis{3,5-di(N-carbazyl)n-alkyloxyphenyl]}porphyrin (Pt-8Cn-TPP, n-alkyl = (CH2)n, n = 4, 6, and 8) are presented. The protonated platinum porphyrins (Pt-8Cn-TPPH8]8+) were assembled with mesoporous silica MCM-48 resulting in the assembly materials Pt-8Cn-TPPH8]8+/MCM-48. The luminescence of Pt-8Cn-TPPH8]8+/MCM-48 can be extremely quenched by molecular oxygen with very high sensitivity (I0/I100 > 5000) and rapid response time (0.04 s) suggesting that the Pt-8Cn-TPPH8]8+/MCM-48 system can be employed to develop high performance oxygen sensors. Among this assembly system, Pt-8C8-TPPH8]8+/MCM-48 exhibits the highest sensitivity. Even if the concentration of oxygen is 0.1%, the luminescence intensity of Pt-8C8-TPPH8]8+/MCM-48 can be quenched by 86%. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|