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Surface-induced symmetry reduction in molecular switching: asymmetric cis–trans switching of CH3S-Au-SCH3on Au(111)

Jianzhi Gao, Lin Tang, Scott Holmes, Fangsen Li, Richard Palmer Orcid Logo, Quanmin Guo

Nanoscale, Volume: 8, Issue: 47, Pages: 19787 - 19793

Swansea University Author: Richard Palmer Orcid Logo

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DOI (Published version): 10.1039/c6nr06864b

Abstract

The cis–trans isomerization of CH3S-Au-SCH3 driven by the tip of the scanning tunneling microscope is investigated at 77 K. CH3S-Au-SCH3 anchored on the Au(111) surface with the S–Au–S axis parallel to the substrate functions as a molecular switch due to the flipping of the CH3 groups. The bonding b...

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Published in: Nanoscale
ISSN: 2040-3364 2040-3372
Published: Royal Society of Chemistry (RSC) 2016
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URI: https://cronfa.swan.ac.uk/Record/cronfa49236
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first_indexed 2019-03-18T20:01:27Z
last_indexed 2021-09-22T03:08:10Z
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spelling 2021-09-21T15:34:08.4353734 v2 49236 2019-03-18 Surface-induced symmetry reduction in molecular switching: asymmetric cis–trans switching of CH3S-Au-SCH3on Au(111) 6ae369618efc7424d9774377536ea519 0000-0001-8728-8083 Richard Palmer Richard Palmer true false 2019-03-18 MECH The cis–trans isomerization of CH3S-Au-SCH3 driven by the tip of the scanning tunneling microscope is investigated at 77 K. CH3S-Au-SCH3 anchored on the Au(111) surface with the S–Au–S axis parallel to the substrate functions as a molecular switch due to the flipping of the CH3 groups. The bonding between CH3S-Au-SCH3 and Au(111) leads to asymmetric isomerization where one of the two methyl groups flips much more effectively than the other, despite the symmetry of CH3S-Au-SCH3. Our findings suggest the possibility of constructing similar molecular switches that can be operated at room temperature and a potential route for fine-tuning of molecular switches in future nanoscale electro-mechanical devices. Journal Article Nanoscale 8 47 19787 19793 Royal Society of Chemistry (RSC) 2040-3364 2040-3372 21 12 2016 2016-12-21 10.1039/c6nr06864b http://dx.doi.org/10.1039/c6nr06864b COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2021-09-21T15:34:08.4353734 2019-03-18T14:28:27.2670647 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Jianzhi Gao 1 Lin Tang 2 Scott Holmes 3 Fangsen Li 4 Richard Palmer 0000-0001-8728-8083 5 Quanmin Guo 6
title Surface-induced symmetry reduction in molecular switching: asymmetric cis–trans switching of CH3S-Au-SCH3on Au(111)
spellingShingle Surface-induced symmetry reduction in molecular switching: asymmetric cis–trans switching of CH3S-Au-SCH3on Au(111)
Richard Palmer
title_short Surface-induced symmetry reduction in molecular switching: asymmetric cis–trans switching of CH3S-Au-SCH3on Au(111)
title_full Surface-induced symmetry reduction in molecular switching: asymmetric cis–trans switching of CH3S-Au-SCH3on Au(111)
title_fullStr Surface-induced symmetry reduction in molecular switching: asymmetric cis–trans switching of CH3S-Au-SCH3on Au(111)
title_full_unstemmed Surface-induced symmetry reduction in molecular switching: asymmetric cis–trans switching of CH3S-Au-SCH3on Au(111)
title_sort Surface-induced symmetry reduction in molecular switching: asymmetric cis–trans switching of CH3S-Au-SCH3on Au(111)
author_id_str_mv 6ae369618efc7424d9774377536ea519
author_id_fullname_str_mv 6ae369618efc7424d9774377536ea519_***_Richard Palmer
author Richard Palmer
author2 Jianzhi Gao
Lin Tang
Scott Holmes
Fangsen Li
Richard Palmer
Quanmin Guo
format Journal article
container_title Nanoscale
container_volume 8
container_issue 47
container_start_page 19787
publishDate 2016
institution Swansea University
issn 2040-3364
2040-3372
doi_str_mv 10.1039/c6nr06864b
publisher Royal Society of Chemistry (RSC)
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
url http://dx.doi.org/10.1039/c6nr06864b
document_store_str 0
active_str 0
description The cis–trans isomerization of CH3S-Au-SCH3 driven by the tip of the scanning tunneling microscope is investigated at 77 K. CH3S-Au-SCH3 anchored on the Au(111) surface with the S–Au–S axis parallel to the substrate functions as a molecular switch due to the flipping of the CH3 groups. The bonding between CH3S-Au-SCH3 and Au(111) leads to asymmetric isomerization where one of the two methyl groups flips much more effectively than the other, despite the symmetry of CH3S-Au-SCH3. Our findings suggest the possibility of constructing similar molecular switches that can be operated at room temperature and a potential route for fine-tuning of molecular switches in future nanoscale electro-mechanical devices.
published_date 2016-12-21T04:00:04Z
_version_ 1763753070740635648
score 11.037056

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