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Oligoaniline-Functionalized terpyridine ligands and their ruthenium(II) complexes: synthesis, spectroscopic property and redox behaviors
Qiu, Dongfang1,2; Cheng, Yanxiang1; Wang, Lixiang1
2009
Source PublicationDALTON TRANSACTIONS
ISSN1477-9226
Issue17Pages:3247-3261
AbstractA series of oligoaniline-functionalized mono- and bis-topic terpyridine ligands, i.e. C(6)H(5)[N(R)C(6)H(4)](n)TPY (R = H, butyl, tert-butyloxycarbonyl; n = 1-4; TPY = 2,2':6',2"-terpyridyl) and TPYC(6)H(4)[N(R)C(6)H(4)](m)TPY (R = H, tert-butyloxycarbonyl; m = 2, 4), and the corresponding monoand bis-nuclear ruthenium(II) complexes have been synthesized and verified. The spectroscopic results indicate that two kinds of pi-pi* transitions from TPY and oligoaniline fragments of ligands strongly shift to lower energy, and the metal-to-ligand charge-transfer transition ((1)MLCT) bands of all obtained complexes are considerably red-shifted (Delta lambda(max) = 22-64 nm) and their intensities become much more intense (approximately 4-6 times), compared with those of the reported complex [Ru(TPY)(2)](2+). Moreover, the spectroscopic properties of the ligands and complexes with longer oligoaniline units (n = 3, 4) are markedly influenced by the external stimulus, such as the oxidation and proton acid doping. The characteristic absorption bands in the visual and near infrared (NIR) scales demonstrate the presence of various oxidized and doped states of the oligoaniline unit. All complexes show multiplicate redox processes based on metal center, oligoaniline and terpyridine units. The potential shifts suggest the donor and acceptor (D-A) interaction between the oligoaniline unit and the bis(terpyridine)-Ru(2+) center.
DOI10.1039/b820392j
Indexed BySCI
Language英语
WOS IDWOS:000265160700015
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66784
Collection中国科学院化学研究所
Corresponding AuthorCheng, Yanxiang
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Qiu, Dongfang,Cheng, Yanxiang,Wang, Lixiang. Oligoaniline-Functionalized terpyridine ligands and their ruthenium(II) complexes: synthesis, spectroscopic property and redox behaviors[J]. DALTON TRANSACTIONS,2009(17):3247-3261.
APA Qiu, Dongfang,Cheng, Yanxiang,&Wang, Lixiang.(2009).Oligoaniline-Functionalized terpyridine ligands and their ruthenium(II) complexes: synthesis, spectroscopic property and redox behaviors.DALTON TRANSACTIONS(17),3247-3261.
MLA Qiu, Dongfang,et al."Oligoaniline-Functionalized terpyridine ligands and their ruthenium(II) complexes: synthesis, spectroscopic property and redox behaviors".DALTON TRANSACTIONS .17(2009):3247-3261.
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