摘要
将小分子金属配合物[Pt(C^N^N)Cl](HC^N^N=6-(4-苯基)-2,2′-联吡啶)连接到高分子P4VP(聚4-乙烯基吡啶)侧链上,制备了聚4-乙烯基吡啶铂(Ⅱ)配合物[(P4VP)Pt(C^N^N)]Cl。此高分子配合物旋涂膜对醇蒸气具有高度的识别响应能力:膜的荧光强度在醇蒸气中迅速猝灭。而在氮气流中,荧光又能够重新开启。整个过程可逆、迅速。膜对不同醇蒸气的敏感能力差别顺序为:甲醇>乙醇>异丙醇。并且荧光强度变化和醇蒸气浓度在一定范围内,具有好的线性关系。此外膜对以上醇蒸气的监测LOD(limit of detection)分别是9.5、16.1和11 ppm。
A new polymeric complex, [ (P4VP)Pt (C'N^N)] Cl, has been synthesized by the reaction of poly (4-vinylpyridine) (P4VP) with [ Pt(CAN^N) Cl] (HC^N^N = 6-(4-methylphenyl)-2,2'-bipyridine) ,in which the Pt-Cl bond is replaced by pyfidine group in P4VP. The spin-coated film prepared by using [ (P4VP) Pt ( C ^ N ^ N ) ] Cl is highly sensitive to alcohol vapor by fast luminescence quenching, and the luminescence intensity can he restored in N2 atmosphere. The total process is reversible and quick. Response sensitivity of the film towards the alcohol vapors follows the order: methanol 〉 ethanol 〉 isopropanol and shows good linear relationship with variation of alcohol vapor' s concentration. The LOD for alcohol vapors is 9. 5 ppm (methanol), 16. 1 ppm (ethanol) and 11 ppm ( isopropanol), respectively.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2008年第12期1591-1596,共6页
Chemical Research and Application
基金
国家自然科学基金资助项目(90610034和20671094)