Chem. J. Chinese Universities

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Assembly of Luminescent Palladium(Ⅱ) Carbazyl Substituted Porphyrin Complexes with Mesoporous Silica MCM-48 and Oxygen Sensing Properties

HUO Cheng, ZHANG Hong-Yu, ZHANG Ping, SONG Wei-Feng, ZHANG Hui-Dong, WANG Yue   

  1. Key Laboratory for Supramolecular Structure and Materials of Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2006-02-24 Revised:1900-01-01 Online:2007-01-10 Published:2007-01-10
  • Contact: WANG Yue

Abstract: A series of palladium meso-tetrakis[3-methoxy-4-(N-carbazyl)n-alkyloxyphenyl]porphyrin(Pd-4Cn-TPP, n=4, 6, 8) were synthesized. Pd-4C4-TPP, Pd-4C6-TPP and Pd-4C8-TPP exhibit similar luminescent properties in solution and solid state. Three protonated palladium(Ⅱ) porphyrins Pd-4Cn-TPP4+ are assembled with mesoporous silica MCM-48, respectively, resulting in the assembly materials Pd-4Cn-TPP4+/MCM-48(n=4, 6, 8). The luminescence of Pd-4Cn-TPP4+/MCM-48 can be extremely quenched by molecular oxygen. Even the volume fraction of oxygen is 0.1%, the luminescence intensity of Pd-4Cn-TPP4+/MCM-48 can be quenched over 50%. The high sensitivity(I0/I100>38) and rapid response time(t≤0.08 s) were achieved.

Key words: Palladium(Ⅱ) porphyrin, Oxygen sensor, Mesoporous silica

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