Mechanism of dimerization of 1,4-dithiafulvenes into TTF vinylogues

被引：81

作者：

Hapiot, P

Lorcy, D

Tallec, A

Carlier, R

Robert, A

机构：

[1] UNIV RENNES 1,GRP CHIM STRUCT,UA CNRS 704,F-35042 RENNES,FRANCE

[2] UNIV RENNES 1,UA CNRS 439,LAB ELECTROCHIM ORGAN,F-35042 RENNES,FRANCE

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1996年 / 100卷 / 35期

关键词：

D O I：

10.1021/jp961048v

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：

Mechanism of the oxidative dimerization of DTF (dithiafulvenes) to form TTF vinylogues (tetrathiafulvalenes) has been investigated by cyclic voltammetry at low and high scan rates for a series of substituted DTF. It involves first the formation of the cation radical which couples to form the protonated dication. This dication slowly deprotonates to give the final TTF (k=0.5-1 s(-1)). The dimerization rate constant was found to be in the range of k(dim)=(2-4) x 10(8) L mol(-1) s(-1) and not vary much with the nature of the substituent.

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页码：14823 / 14827

页数：5

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