Direct voltammetric evidence for a reducing agent generated from the electrochemical oxidation of tripropylamine for electrochemiluminescence of ruthenium tris(bipyridine) complexes?

被引:12
作者
Zhou, M
Heinze, J
Borgwarth, K
Grover, CP
机构
[1] Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
[2] Univ Freiburg, Inst Phys Chem, D-79104 Freiburg, Germany
关键词
amines; luminescence; electrochemistry; tripropylamine;
D O I
10.1002/cphc.200300875
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Electrochemical lighting? A redox-active substance was found to be a product of the electrochemical oxidation of tripropylamine (see picture). With regard to the strong reducing ability of the reduced form of the substance, the chemical nature of the species is discussed with respect to the tripropylamine free radical, which is believed to participate in the formation of the luminescent excited state of [Ru(bpy)3]2+ in both acetonitrile and aqueous solutions. The findings may help understand the complicated anodic oxidation mechanism of trialkylamines, which is crucial to the generation of electrochemiluminescence of [Ru(bpy)3] 2+.
引用
收藏
页码:1241 / 1243
页数:3
相关论文
共 23 条
[1]   PHOTOCHEMICAL GENERATION OF RU(BPY)3+ AND O2- [J].
ANDERSON, CP ;
SALMON, DJ ;
MEYER, TJ ;
YOUNG, RC .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (06) :1980-1982
[2]   NANOSECOND TRANSIENT PROCESSES IN THE TRIETHYLAMINE QUENCHING OF BENZOPHENONE TRIPLETS IN AQUEOUS ALKALINE MEDIA - SUBSTITUENT EFFECT, KETYL RADICAL DEPROTONATION, AND SECONDARY PHOTOREDUCTION KINETICS [J].
BHATTACHARYYA, K ;
DAS, PK .
JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (17) :3987-3993
[3]  
BLACKBURN GF, 1991, CLIN CHEM, V37, P1534
[4]   PHOTOCHEMISTRY OF TRANSITION-METAL COMPLEXES - MECHANISM AND EFFICIENCY OF ENERGY-CONVERSION BY ELECTRON-TRANSFER QUENCHING [J].
BOCK, CR ;
MEYER, TJ ;
WHITTEN, DG .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1975, 97 (10) :2909-2911
[5]   ESTIMATION OF EXCITED-STATE REDOX POTENTIALS BY ELECTRON-TRANSFER QUENCHING - APPLICATION OF ELECTRON-TRANSFER THEORY TO EXCITED-STATE REDOX PROCESSES [J].
BOCK, CR ;
CONNOR, JA ;
GUTIERREZ, AR ;
MEYER, TJ ;
WHITTEN, DG ;
SULLIVAN, BP ;
NAGLE, JK .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1979, 101 (17) :4815-4824
[6]   ELECTRON-TRANSFER REACTIONS OF EXCITED-STATES - REDUCTIVE QUENCHING OF TRIS(2,2'-BIPYRIDINE)RUTHENIUM(II) LUMINESCENCE [J].
CREUTZ, C ;
SUTIN, N .
INORGANIC CHEMISTRY, 1976, 15 (02) :496-499
[7]  
Erler K, 1998, WIEN KLIN WOCHENSCHR, V110, P5
[8]   Quenching dynamics of the photoluminescence of [Ru(bpy)3]2+-pendant PAMAM dendrimers by nitro aromatics and other materials [J].
Glazier, S ;
Barron, JA ;
Morales, N ;
Ruschak, AM ;
Houston, PL ;
Abruña, HD .
MACROMOLECULES, 2003, 36 (04) :1272-1278
[9]   High-frequency electrochemiluminescent investigation of the reaction pathway between tris(2,2′-bipyridyl)ruthenium(II) and tripropylamine using carbon fiber microelectrodes [J].
Gross, EM ;
Pastore, P ;
Wightman, RM .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (37) :8732-8738
[10]  
JURIS A, 1976, J AM CHEM SOC, V98, P1047, DOI 10.1021/ja00420a046