Gaussian Distribution of Electron Transfer Distance in Redox Terminated Self-Assembled Thiol Monolayers

被引:6
作者
Davia, Federico G. [1 ]
Herrera, Santiago E. [1 ,2 ]
Calvo, Ernesto J. [1 ]
机构
[1] Consejo Nacl Invest Cient & Tecn, INQUIMAE, Dept Quim Inorgan Analit & Quim Fis, Fac Ciencias Exactas & Nat, Ciudad Univ,Pabellon 2,C1428EHA, Buenos Aires, DF, Argentina
[2] Univ Nacl La Plata, CONICET, Fac Ciencias Exactas, Inst Invest Fis Quim Teor & Aplicadas INIFTA, 4 Casilla Correo 16, RA-1900 La Plata, Argentina
关键词
ALKANETHIOL MONOLAYERS; RATE CONSTANTS; KINETICS; MODEL; GOLD;
D O I
10.1021/acs.jpcc.9b00702
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
A Gaussian distribution of tunneling distances due to different orientation populations in electrochemically active self-assembled monolayers composed of alkanethiols of different length has been assumed in a model which leads to a Gaussian distribution of the logarithm of the electron transfer constants. The model has been validated with experimental data for osmium terminated SAMs of different length using a modification of Creager's method.
引用
收藏
页码:13939 / 13943
页数:5
相关论文
共 17 条
[1]   THE KINETICS OF ELECTRON-TRANSFER IN THE THIONINE-COATED ELECTRODE [J].
ALBERY, WJ ;
BOUTELLE, MG ;
COLBY, PJ ;
HILLMAN, AR .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1982, 133 (01) :135-145
[2]   A GENERAL-MODEL FOR DISPERSED KINETICS IN HETEROGENEOUS SYSTEMS [J].
ALBERY, WJ ;
BARTLETT, PN ;
WILDE, CP ;
DARWENT, JR .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (07) :1854-1858
[3]   FREE-ENERGY AND TEMPERATURE-DEPENDENCE OF ELECTRON-TRANSFER AT THE METAL-ELECTROLYTE INTERFACE [J].
CHIDSEY, CED .
SCIENCE, 1991, 251 (4996) :919-922
[4]   Electron transfer at electrodes through conjugated "molecular wire" bridges [J].
Creager, S ;
Yu, CJ ;
Bamdad, C ;
O'Connor, S ;
MacLean, T ;
Lam, E ;
Chong, Y ;
Olsen, GT ;
Luo, JY ;
Gozin, M ;
Kayyem, JF .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1999, 121 (05) :1059-1064
[5]   A new way of using ac voltammetry to study redox kinetics in electroactive monolayers [J].
Creager, SE ;
Wooster, TT .
ANALYTICAL CHEMISTRY, 1998, 70 (20) :4257-4263
[6]   Osmium complexes bearing functional groups: building blocks for integrated chemical systems [J].
Danilowicz, C ;
Corton, E ;
Battaglini, F .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1998, 445 (1-2) :89-94
[7]  
Finklea H. O., 2007, ENCY ELECTROCHEMISTR, V10, P623
[8]   Methylene Blue Incorporation into Alkanethiol SAMs on Au(111): Effect of Hydrocarbon Chain Ordering [J].
Grumelli, Doris ;
Mendez De Leo, Lucila P. ;
Bonazzola, Cecilia ;
Zamlynny, Vlad ;
Calvo, Ernesto J. ;
Salvarezza, Roberto C. .
LANGMUIR, 2010, 26 (11) :8226-8232
[9]   Electrochemical gating of single osmium molecules tethered to Au surfaces [J].
Herrera, Santiago ;
Adam, Catherine ;
Ricci, Alejandra ;
Calvo, Ernesto J. .
JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2016, 20 (04) :957-967
[10]   A generalized equivalent-circuit model for electroactive monolayers exhibiting a fixed redox potential and a distribution of electron-transfer rate constants - I. Square distributions [J].
Li, JH ;
Schuler, K ;
Creager, SE .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (12) :4584-4588