Publication | Open Access
A Covalent Tetrathiafulvalene–Tetracyanoquinodimethane Diad: Extremely Low HOMO–LUMO Gap, Thermoexcited Electron Transfer, and High‐Quality Langmuir–Blodgett Films
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References
2003
Year
Materials ScienceOrganic Material ChemistryOrganic Charge-transfer CompoundEngineeringElectronic MaterialsOrganic ElectronicsThermoexcited Electron TransferApplied PhysicsOrganic SemiconductorLow Homo–lumo GapMolecule-based MaterialOrganic ChemistryChemistryCovalent Tetrathiafulvalene–tetracyanoquinodimethane DiadTetracyanoquinodimethane FragmentsFunctional Materials
Nearly 30 years after theoretical prediction, a stable and well-characterized compound that covalently links tetrathiafulvalene and tetracyanoquinodimethane fragments has been synthesized (1, see scheme). The extremely low HOMO–LUMO gap of 1 (0.17 eV) allows the first observation of thermoexcited electron transfer in a donor–acceptor diad. Langmuir–Blodgett films of 1 are not electrically conducting.
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