Spiro-Conjugated Molecular Junctions: between Jahn-Teller Distortion and Destructive Quantum Interference
arXiv:1802.06876 · doi:10.1021/acs.jpclett.8b00550
Abstract
The quest for molecular structures exhibiting strong quantum interference effects in the transport setting has long been on the forefront of chemical research. Here, we establish theoretically that the unusual geometry of spiro-conjugated systems gives rise to complete destructive interference in the resonant-transport regime. This results in a current blockade of the type not present in meta-connected benzene or similar molecular structures. We further show that these systems can undergo a transport-driven Jahn-Teller distortion which can lift the aforementioned destructive-interference effects. The overall transport characteristics is determined by the interplay between the two phenomena. Spiro-conjugated systems may therefore serve as a novel platform for investigations of quantum interference and vibronic effects in the charge transport setting. The potential to control quantum interference in these systems can also turn them into attractive components in designing functional molecular circuits.
arXiv commentSupplementary Information available on request
References in corpus (21)
- Observation of Quantum Interference in Molecular Charge Transport
- Franck-Condon blockade and giant Fano factors in transport through single molecules
- Highly conductive molecular junctions based on direct binding of benzene to platinum electrodes
- Controlling quantum transport through a single molecule
- Experimental Evidence for Quantum Interference and Vibrationally Induced Decoherence in Single-Molecule Junctions
- Control of electron transport through Fano resonances in molecular wires
- Full counting statistics of nano-electromechanical systems
- Current collapse in tunneling transport through benzene
- Quantum Interference and Decoherence in Single-Molecule Junctions: How Vibrations Induce Electrical Current
- A benzene interference single-electron transistor
- Vibrational nonequilibrium effects in the conductance of single-molecules with multiple electronic states
- Symmetry fingerprints of a benzene single-electron transistor
- Quantum Interference in Off-Resonant Transport through Single Molecules
- Electric-field control of interfering transport pathways in a single-molecule anthraquinone transistor
- Quantum Transport through Nanostructures with Orbital Degeneracies
- Kondo blockade due to quantum interference in single-molecule junctions
- Interference effects in the Coulomb blockade regime: current blocking and spin preparation in symmetric nanojunctions
- Vibrational effects in charge transport through a molecular double quantum dot
- Environment-Assisted Quantum Transport through Single-Molecule Junctions
- Quantum transport through single-molecule junctions with orbital degeneracies
- Quantum Interference Controlled Molecular Electronics
Cited by in corpus (4)
- Beyond Marcus theory and the Landauer-Büttiker approach in molecular junctions: A unified framework
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- Marcus Theory of Thermoelectricity in Molecular Junctions
- Electrode effects on the observability of destructive quantum interference in single-molecule junctions