Chemistry Letters, Vol.29, No.2, 132-133, 2000
Tuning of intramolecular pi-pi overlap mode of tetrathiafulvalene bisannulated macrocycles in the open-shell electronic state
Charge-transfer complexes of bis(methylthio)tetrathiafulvalene (DMT-TTF) bisannulated macrocycles with 2,3,5,6-tetrafluoro-7,7,8,S-tetracyanoquinodimethane (F-4-TCNQ) were prepared. The crystal structural analysis revealed an intramolecular dimer structure with the pi-pi overlap of DMT-TTF units. The magnitude of intramolecular pi-pi overlap depends on the ring size of macrocycles.