钌(Ⅱ)配合物有机改性溶胶-凝胶氧传感膜荧光行为的研究  

Oxygen Sensing Film Based on Organically Modified Sol-gel with Ruthenium Complexes and Their Fluorescent Spectra Studies

作　　者：陈曦[1] 李真[1] 蒋亚琪[1] 钟振明[1] 王小如[1] WONG Kwokyin 

机构地区：[1]厦门大学化学化工学院现代分析科学教育部重点实验室,福建厦门361005 [2]香港理工大学应用生物与化学科技系

出　　处：《光谱学与光谱分析》2002年第5期796-799,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金委员会;香港研究资助局联合科研基金 (40 0 1 1 61 946);国家 863计划海洋领域课题资助 (2 0 0 1AA6351 0 0 )

摘　　要：本文考察了利用甲基硅氧烷 (TMOS)和二甲基二甲氧基硅烷 (DiMe DMOS)为共先驱体制备的有机改性溶胶 凝胶 (sol gel)氧荧光敏感传感膜 ,比较了 5种不同配体的Ru配合物在不同极性溶剂和sol gel膜内的荧光行为 ,考察了膜极性的改变对Ru化合物荧光光谱的影响 ,以及氧对不同极性有机改性sol gel包埋Ru化合物荧光猝灭的程度。研究结果表明 ,在sol gel膜内 ,Ru化合物的荧光寿命都有不同程度的增加 ,同时对氧的猝灭程度增加。另外膜的极性对氧猝灭的程度也有很大的影响 ,增加膜的疏水性 。A new kind of organically modified sol-gel (ormosil) as a matrix for oxygen-sensitive sensor, in which dimethyldimethoxysilane was selected as an organic modifier in the precursor is described. The fluorescent behaviors of different ruthenium complexes in solution and ormosil film were studied. The sensing film with different kind ruthenium complex as an indicator developed in this paper was characterized in terms of efficiently quenched by oxygen. A new ormosil provides a more desirable environment for oxygen response through increasing film hydrophobicity by the content of the nonbridging Si-CH 3 groups has been discussed. The sensing film with tris-(4,7-diphenyl-1,10-phenanthroline) ruthenium(Ⅱ) as an indicator is selected because of its characteristic with high quenching efficiency, fast response time, high luminescence intensity and long-term stability.

关 键 词：钌(Ⅱ)配合物 氧传感膜 荧光行为 溶胶-凝胶 有机改性 氧传感器 光谱行为 

分 类 号：O614.821[理学—无机化学] O657.32[理学—化学]