Cyclic TTF Tetramer Linked by Methylenedithio Spacers

Abstract

A new cyclic tetrathiafulvalene (TTF) tetramer 1 was synthesized. The cyclic voltammogram of 1 consists of four pairs of two-electron redox waves. UV–vis–NIR spectra of the oxidative species of 1 suggest that 1²⁺, 1⁴⁺, and 1⁶⁺ possibly adopt two pairs of dimeric TTF structures that interact with each other through the so-called side-by-side interaction.