节点文献
四氯苯醌自组装膜电子传递机制的研究
Electron Transfer Mechanism Characteristics of 2,3,5,6-tetrachloride-quinone Anchored on the Self-assembled Monolayers of Dithiol
【Abstract】 2,3,5,6-Tetrachloride-quinone was anchored to a gold surfare through the self-assem-bled monolayers of dithiol [DT HS-(CH2).-SH n=2,4,6,8,10]. The surface coverage of the anchoredTQ was esteminated to be 4.0 ×10-11 mol’cm-2. The electron transfer rate constant Ket associatedwith the redox process of anchored film decreased from 6.75 s-1 at n=2 to 0.169 s-1 at n=10 withincreasing the chain length of the DT SAMs througth the redox potential of TQ. The turnningbarrier conefficient.(β) of the electron transfer was estimated to be 0.82A-1 from the observed linearrelationship between the Ket and the monolayer chain length.
【关键词】 四氯苯醌;
硫醇;
自组装膜;
电子传递速率常数;
【Key words】 2; 3; 5; 6-Tetrachloride-Quinone; Dithiol; Self-assembled monolayers; Electron transfer rate constant (Ket);
【Key words】 2; 3; 5; 6-Tetrachloride-Quinone; Dithiol; Self-assembled monolayers; Electron transfer rate constant (Ket);
【基金】 国家自然科学基金;江苏省自然科学基金
- 【文献出处】 物理化学学报 ,ACTA PHYSICO-CHIMICA SINICA , 编辑部邮箱 ,1998年07期
- 【分类号】O625
- 【被引频次】9
- 【下载频次】86