The 1:1 charge-transfer complex dibenzotetrathiafulvalene-pyromellitic dianhydride (DBTTF-PMDA)

Abstract

The title charge-transfer (CT) complex, C10H2O 6·C14H8S4, composed of donor dibenzotetrathiafulvalene (DBTTF) and acceptor pyromellitic dianhydride (PMDA), forms a mixed stacking pattern along the [-110] direction. The constituent molecules occupy crystallographic inversion centers. They are nearly parallel and lie ca.3.41Å from each other. The crystals exhibit a high degree of donor/acceptor overlap [88.20(4)%] in the long direction of the DBTTF and PMDA molecules as compared with 51.27(5)% in the shortest direction of the molecules.