1,4-Dihydro-1,4-diphosphinine fused with two tetrathiafulvalenes

Abstract

Electrochemical and theoretical investigations demonstrate through-bond interactions between two TTF moieties fused to a 1,4-dihydro-1,4-diphosphinine, for which the single crystal X-ray structure of the cis isomer is described together with that of a mixed-valent, charge-localized, radical cation salt with Mo₆O₁₉²⁻, obtained upon electrocrystallization of the same cis isomer.