Influence of Environmental Fluctuations on Quantum Interference in Naphthalene and Azulene

Both naphthalene and azulene have the same number of carbon and hydrogen atoms, but the former is an alternant hydrocarbon and the latter is a nonalternant hydrocarbon. This leads to a large difference in their electronic and transport properties. Herein, quantum transport is investigated through th...

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Main Authors: Jehan Alqahtani, Sara Sangtarash, Hatef Sadeghi
Format: Article
Language:English
Published: Wiley-VCH 2023-10-01
Series:Small Science
Subjects:
Online Access:https://doi.org/10.1002/smsc.202300075
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author Jehan Alqahtani
Sara Sangtarash
Hatef Sadeghi
author_facet Jehan Alqahtani
Sara Sangtarash
Hatef Sadeghi
author_sort Jehan Alqahtani
collection DOAJ
description Both naphthalene and azulene have the same number of carbon and hydrogen atoms, but the former is an alternant hydrocarbon and the latter is a nonalternant hydrocarbon. This leads to a large difference in their electronic and transport properties. Herein, quantum transport is investigated through these two molecules and it is shown how quantum interference (QI) affects their electrical conductance. It is demonstrated that the orbital rule to predict QI breaks down in both naphthalene and azulene. The influence of environmental fluctuations on their QI and electrical conductance is also investigated. The results show that QI in azulene is more sensitive to environmental fluctuations than in naphthalene. In particular, destructive QI can be changed to constructive QI in azulene by small environmental fluctuations.
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spelling doaj.art-187e18246da144d09d9a6ea77d6e47f62023-10-16T07:06:38ZengWiley-VCHSmall Science2688-40462023-10-01310n/an/a10.1002/smsc.202300075Influence of Environmental Fluctuations on Quantum Interference in Naphthalene and AzuleneJehan Alqahtani0Sara Sangtarash1Hatef Sadeghi2Device Modelling Group School of Engineering University of Warwick CV4 7AL Coventry UKDevice Modelling Group School of Engineering University of Warwick CV4 7AL Coventry UKDevice Modelling Group School of Engineering University of Warwick CV4 7AL Coventry UKBoth naphthalene and azulene have the same number of carbon and hydrogen atoms, but the former is an alternant hydrocarbon and the latter is a nonalternant hydrocarbon. This leads to a large difference in their electronic and transport properties. Herein, quantum transport is investigated through these two molecules and it is shown how quantum interference (QI) affects their electrical conductance. It is demonstrated that the orbital rule to predict QI breaks down in both naphthalene and azulene. The influence of environmental fluctuations on their QI and electrical conductance is also investigated. The results show that QI in azulene is more sensitive to environmental fluctuations than in naphthalene. In particular, destructive QI can be changed to constructive QI in azulene by small environmental fluctuations.https://doi.org/10.1002/smsc.202300075environmental fluctuationsmolecular electronicsnaphthalene and azulenequantum interferencequantum transport
spellingShingle Jehan Alqahtani
Sara Sangtarash
Hatef Sadeghi
Influence of Environmental Fluctuations on Quantum Interference in Naphthalene and Azulene
Small Science
environmental fluctuations
molecular electronics
naphthalene and azulene
quantum interference
quantum transport
title Influence of Environmental Fluctuations on Quantum Interference in Naphthalene and Azulene
title_full Influence of Environmental Fluctuations on Quantum Interference in Naphthalene and Azulene
title_fullStr Influence of Environmental Fluctuations on Quantum Interference in Naphthalene and Azulene
title_full_unstemmed Influence of Environmental Fluctuations on Quantum Interference in Naphthalene and Azulene
title_short Influence of Environmental Fluctuations on Quantum Interference in Naphthalene and Azulene
title_sort influence of environmental fluctuations on quantum interference in naphthalene and azulene
topic environmental fluctuations
molecular electronics
naphthalene and azulene
quantum interference
quantum transport
url https://doi.org/10.1002/smsc.202300075
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AT sarasangtarash influenceofenvironmentalfluctuationsonquantuminterferenceinnaphthaleneandazulene
AT hatefsadeghi influenceofenvironmentalfluctuationsonquantuminterferenceinnaphthaleneandazulene