新型含二氮雜啡聚三烷基噻吩衍生物及其金屬錯合物的合成與光學性質的探討

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题名:	新型含二氮雜啡聚三烷基噻吩衍生物及其金屬錯合物的合成與光學性質的探討
作者:	陳亮年;Liang-Nien Chen
贡献者:	化學研究所
关键词:	二氮雜啡;金屬錯合物;metal complex;phenanthroline
日期:	2005-06-28
上传时间:	2009-09-22 10:13:12 (UTC+8)
出版者:	國立中央大學圖書館
摘要:	摘要共軛高分子因其應用的多元性成為學界與業界的主要研究材料，就其應用在發光元件及化學感應器而言，含有-C=N- ( imine ) 結構的共軛高分子漸受重視。此類高分子除了具有一般有機物可合成出各種衍生物的特性外；其-C=N-官能基更能與多種的離子或化合物反應而改變光、電特性，因此可做為化學感應器；更有趣的是其可藉由和可發磷光的金屬形成錯合物，來提高量子產率與調變光色。本研究利用Yamamoto與Stille coupling合成出一系列具有 -C=N- 結構的聚三烷基噻吩衍生物Poly-3,8-n(4-octylthiophene-2,5-yl)-[1,10]-phenan -throline (n = bis, tetrakis ) 及其與 Cis-dichloro-bis ( 2,2’- bipyridine) ruthenium反應所做成的共軛分子-金屬錯合物。並以1H-NMR、FT-IR、MALDI-TOF、EA、GPC、TGA、UV-Vis、PL及TR-PL進行結構分析與物性測試。當高分子或其相對的單體與不同離子作用時，會有不同的光學特性變化，顯示其做為離子感應器的潛能，此外含phenanthroline的共軛分子或高分子與Ru反應所得的金屬錯合物的確可經由MLCT來調變光色，其中含Ru的Poly-3,8-bis(4-octylthioph- ene-2,5-yl)-[1,10]phenanthroline在CHCl3中的光色為非常漂亮的紅色。 Abstract Conjugated polymer have become one type of the most interesting materials for both academia and industry, due to their widely applications. For applying in light-emitting device and chemical sensor, polymers structure containing the -C=N-( imine ) group has been noticed recently. Imine group in conjugated polymers not only has the characteristic of being a functional group for preparing derivatives but also reacts with various ions or molecules to alter the photophysics and electric properties of the polymers. Furthermore, the imine group can chelate with a phosphorescent metal to enhance the quantum yield of the polymer and at the same time tune the luminescence color. A novel series of conjugated polymers comprising -C=N- group: Poly-3,8-n(4-octylthiophene-2,5-yl)-[1,10]-phenanthroline (n = bis, tetrakis) and their ruthenium complexes which also contains cis-dichloro and bis ( 2,2’- bipyridine) ligands were synthesized using Yamamoto coupling and Stille coupling. They are characterized by 1H-NMR, FT-IR, MALDI-TOF, EA, GPC, TGA, UV-vis, PL and TR-PL. It was shown that the optical properties of the imine containing monomers and polymers change when their react with varions ions, showing a great potential for application in chemical sensors. The luminescence color of the phenanthroline containing polymers has change via a MLCT (metal to ligand charge transfer) mechanism when they reacted with ruthenium complexes. Poly-3,8-bis(4-octylthiophene-2,5-yl)-[1,10] phenanthroline is a blue emitter, whereas it emits a beautiful red light in CHCl3 solution when it was chelated with a ruthenium complexes.
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