X-Ray crystal structure and solid-state properties of a 1:1 complex of tetrathiafulvalene (TTF) and 1-oxo-2,6-dimethyl-4-dicyanomethylenecyclohexa-2,5-diene

Abstract

A crystalline 1:1 complex of tetrathiafulvalene (TTF) and 1-oxo-2,6-dimethyl-4-dicyanomethylenecyclohexa-2,5-diene has been characterised by IR, UV and EPR spectroscopy, two-probe dc conductivity data and single-crystal X-ray analysis. The complex consists of mixed donor–acceptor stacks of two crystallographically unrelated types and is an electrical insulator.