- 期刊
Ru(II)的吡啶配位化學在分子導線上的發展
Towards the Development of Ru(lI) Polypyridine Coordination Chemistry on Molecular Wires
摘要
Ru(II)多吡啶化合物擁有獨特的光學與電化學性質，長久以來都是一個熱門的研究領域，其中bis-terpyridine配位基可以與Ru(II)，Os(II)等具有氧化還原特性的過渡金屬形成多核化合物，而具有建構剛直性分子導線的潛力。本文將簡述以共軛基團(苯環、三重鍵、噻吩)為連接單位的bis-terpyridine配位基與其金屬化合物。由其物性測定得知，接有取代基的Ru(II)化合物在室溫即可觀測到^3MLCT的發光現象；而在多核化合物中，可以觀測到分子內能量/電子轉移的現象(Ru→Os)，而此現象皆是傾向於Dexter-type的反應機制。
並列摘要
A great deal of research has concentrated on long range electron and energy transport in transition metal- based system and conducting polymer. Incorporating of the photoactive subunits via highly conjugated spacer group promote to construction of one- dimensional multicomponent molecule wires. It is shown that facile electron delocalization over an extended π* orbitals of the ditopic ligands and decrease the energy of the ^3MLeT triplet state, thereby minimizing the extent of its mixing with the higher energy ^3MC state. In heteronuclear complxes, intramolecular triplet energy and electron transfer is observed through Dexter- type mechanism.
延伸閱讀
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