First TOF Donors: Synthesis and Characterization of Dibenzo- and Dinaphthotetraoxafulvalenes

Abstract

Synthetic metals based on tetrachalcogenafulvalene donor molecules have received much attention. Unlike the thia-, selena-, and tellura-derivatives, tetraoxafulvalenes (TOFs) are rare, because of difficulties in their preparation and isolation. Here is presented the first unequivocal synthesis, spectral characterization, and X-ray structure determination of TOF derivatives—dibenzo- (see Figure) and dinaphtho-TOF.