High Charge Mobility in a Tetrathiafulvalene-Based Microporous Metal–Organic Framework

Abstract

The tetratopic ligand tetrathiafulvalene-tetrabenzoate (H₄TTFTB) is used to synthesize Zn₂(TTFTB), a new metal–organic framework that contains columnar stacks of tetrathiafulvalene and benzoate-lined infinite one-dimensional channels. The new MOF remains porous upon desolvation and exhibits charge mobility commensurate with some of the best organic semiconductors, confirmed by flash-photolysis-time-resolved microwave conductivity measurements. Zn₂(TTFTB) represents the first example of a permanently porous MOF with high charge mobility and may inspire further exploration of the electronic properties of these materials