Electropolymerisable bipyridine ruthenium(II) complexes:: synthesis, spectroscopic and electrochemical characterisation of 4-((2-thienyl) ethenyl)- and 4,4′-di((2-thienyl) ethenyl)-2,2′-bipyridine ruthenium complexes

被引：15

作者：

Aranyos, V

Hagfeldt, A

Grennberg, H

Figgemeier, E

机构：

[1] Uppsala Univ, Dept Phys Chem, S-75123 Uppsala, Sweden

[2] Uppsala Univ, Dept Organ Chem, S-75124 Uppsala, Sweden

来源：

POLYHEDRON | 2004年 / 23卷 / 04期

关键词：

electropolymerisation; Ru-complexes; thiophene; differential pulse voltarnmetry; 4-((2-thienyl)-ethenyl)-2,2 '-bipyridine; redox-polymers;

D O I：

10.1016/j.poly.2003.10.004

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Four new ruthenium polypyridyl complexes with mono- or di-((2-thienyl) ethenyl) substituted bipyridines have been synthesized. The complexes were characterized by NMR, elemental analysis, UV-Vis absorption and electrochemistry (differential pulse and cyclic voltammetry). Electroactive polymer films of these complexes have been prepared by oxidative electropolymerisation and characterized by UV-Vis absorption spectroscopy and electrochemistry. The electrochemically induced polymerisation of the complexes resulted in a significant shift of the oxidation potential of the Ru(II)-Ru(III) process towards more positive potentials. Also, MLCT absorption band of the polymeric complexes is shifted towards shorter wavelengths. These results are interpreted in terms of an interruption of the conjugated system of the (2-thienyl)ethenyl-substituted bipyridine ligands due to a radical polymerisation mechanism affecting rather the ethenyl part of the ligand than the thienyl. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：589 / 598

页数：10

共 28 条

[1] Electropolymerisable bipyridine ruthenium(II) complexes.: Synthesis and electrochemical characterisation of 4-(3-methoxystyryl)- and 4,4′-di(3-methoxystyryl)-2,2′-bipyridine ruthenium complexes
Aranyos, V
Hjelm, J
Hagfeldt, A
Grennberg, H
[J]. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 2001, (08): : 1319 - 1325
[2] BARD AJ, 1980, ELECTROCHEMICAL METH
[3] CYCLIC VOLTAMMETRY OF BENZO-15-CROWN-5 ETHER-VINYL-BIPYRIDYL LIGANDS, THEIR RUTHENIUM(II) COMPLEXES AND BISMETHOXYPHENYL-VINYL-BIPYRIDYL RUTHENIUM(II) COMPLEXES - ELECTROCHEMICAL POLYMERIZATION STUDIES AND SUPPORTING ELECTROLYTE EFFECTS
BEER, PD
KOCIAN, O
MORTIMER, RJ
RIDGWAY, C
[J]. JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1993, 89 (02): : 333 - 338
[4] Brabec CJ, 2001, ADV FUNCT MATER, V11, P15, DOI 10.1002/1616-3028(200102)11:1<15::AID-ADFM15>3.0.CO
[5] 2-A
[6] Molecular photovoltaics
Hagfeldt, A
Grätzel, M
[J]. ACCOUNTS OF CHEMICAL RESEARCH, 2000, 33 (05) : 269 - 277
[7] SOLVENT EFFECTS ON THE POLYMERIZATION KINETICS OF SOME ALPHA-SILYLATED THIOPHENE OLIGOMERS - SPECIAL INFLUENCE OF THE ALPHA-SILYL GROUP
HAPIOT, P
GAILLON, L
AUDEBERT, P
MOREAU, JJE
LEREPORTE, JP
MAN, MWC
[J]. SYNTHETIC METALS, 1995, 72 (02) : 129 - 134
[8] An acetylacetonate-based semiconductor-sensitizer linkage
Heimer, TA
DArcangelis, ST
Farzad, F
Stipkala, JM
Meyer, GJ
[J]. INORGANIC CHEMISTRY, 1996, 35 (18) : 5319 - 5324
[9] The oligomeric approach - the electrochemistry of conducting polymers in the light of recent research
Heinze, J
Tschuncky, P
Smie, A
[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 1998, 2 (02) : 102 - 109
[10] A rod-like polymer containing {Ru(terpy)2} units prepared by electrochemical coupling of pendant thienyl moieties
Hjelm, J
Constable, EC
Figgemeier, E
Hagfeldt, A
Handel, R
Housecroft, CE
Mukhtar, E
Schofield, E
[J]. CHEMICAL COMMUNICATIONS, 2002, (03) : 284 - +

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