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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 27, Number 1
BKCSDE 27(1)
January 20, 2006 
 
Title
 Synthesis of Novel Electrochemiluminescent Polyamine Dendrimers Functionalized with Polypyridyl Ru(II) Complexes and Their Electrochemical Properties
Author
 Do Nam Lee, Hee Sang Park, Eun Hwa Kim, Young Moo Jun, Ja-Young Lee, Won-Yong Lee*, Byeong Hyo Kim*
Keywords
 Electrochemiluminescence, Ruthenium(II) complexes, Polyamine dendrimer
Abstract
 Polyamine dendrimers functionalized with electrochemiluminescent (ECL) polypyridyl Ru(II) complexes, dend-[CO-(CH2)3-mbpy·Ru(L)2]3(PF6)6 (dend: N(CH2CH2NH)3-, L: bpy, o-phen, phen-Cl, DTDP), were synthesized through the complexation of dendritic polypyridyl ligands to Ru(II) complexes. Their electrochemical redox potentials, photoluminescence (PL), and relative ECL intensities were studied. The ECL emissions produced by the reaction between the electro-oxidized Ru3+ species of polyamine dendrimers and tripropylamine as a coreactant were measured in a static system with potential cycles between 0.8 and 1.3 V or through flow injection analysis with a potential of +1.3 V, and were compared to that of [Ru(o-phen)3](PF6)2. Dend-[CO-(CH2)3-mbpy·Ru(bpy)2]3(PF6)6 showed an ECL intensity that was two-fold greater than that of the reference complex [Ru(o-phen)3](PF6)2.
Page
 99 - 105
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