Molecular Coupling between Organic Molecules and Metal

The Journal of Physical Chemistry Letters
Pengcheng HuXiaolin Lu

Abstract

Molecular couplings at interfaces play important roles in determining the performance of nanophotonics and molecular electronics. In this Letter, using femtosecond sum frequency generation to trace free-induction decay of vibrationally excited aromatic thiol molecules immobilized on metal with and without the bridged methylene group(s), metal surface free electron-coupled and uncoupled phenyl C-H stretching vibrational modes were identified, with dephasing times of ∼0.28 and ∼0.60 ps, respectively. For thiols on Au with the bridged methylene group(s) (benzyl mercaptan and phenylethanethiol), both the coupled and uncoupled modes were observed; for thiol on Au without the bridged methylene group (thiophenol), only the coupled mode was observed. This indicates that the bridged methylene group(s) serving as a spacer can be used to adjust the molecular coupling between the phenyl vibration and surface free electrons. The experimental approach can be used to tune molecular couplings in advanced nanophotonics and molecular electronics.

References

Jul 23, 2004·The Journal of Chemical Physics·Jonathan P R SymondsDavid A King
Apr 1, 2005·Nature·Tobias BrixnerGraham R Fleming
Apr 26, 2005·The Journal of Chemical Physics·Andrey N Bordenyuk, Alexander V Benderskii
Aug 25, 2005·Journal of the American Chemical Society·Yongdong Jin, Noga Friedman
Nov 12, 2005·Science·Ellen H G BackusMischa Bonn
Jul 21, 2006·The Journal of Physical Chemistry. B·Andrey N BordenyukAlexander V Benderskii
Oct 13, 2006·Chemical Reviews·Yoshiyasu Matsumoto, Kazuya Watanabe
Feb 17, 2007·Science·Pramod ReddyArun Majumdar
Aug 11, 2007·Science·Zhaohui WangDana D Dlott
Jan 30, 2008·Journal of the American Chemical Society·Jens BredenbeckMischa Bonn
Apr 15, 2009·Journal of the American Chemical Society·Anthony MusumeciTijana Rajh
Oct 30, 2009·The Journal of Physical Chemistry. a·Jeffrey A CarterDana D Dlott
Dec 5, 2009·Nano Letters·Weihai NiJianfang Wang
Mar 3, 2011·The Journal of Chemical Physics·Satoshi NihonyanagiEric Borguet
Mar 4, 2011·The Journal of Physical Chemistry. B·Jennifer E LaaserMartin T Zanni
Dec 22, 2012·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Daniel E RosenfeldMichael D Fayer
Mar 5, 2014·The Journal of Physical Chemistry. B·Rüdiger Scheu, Sylvie Roke
Jul 30, 2014·Nano Letters·Shane M ParkerTamar Seideman
Nov 21, 2014·ACS Nano·Ashwin Gopinath, Paul W K Rothemund
Dec 11, 2014·Nano Letters·Felix BenzJeremy J Baumberg
Jul 15, 2015·Science·Daniel RodrigoHatice Altug
Aug 19, 2015·The Journal of Physical Chemistry Letters·Jan Philip KraackPeter Hamm
Apr 9, 2016·Journal of the American Chemical Society·Michael A DonovanTobias Weidner
Apr 15, 2016·The Journal of Physical Chemistry Letters·Thomas HartmanBert M Weckhuysen
Jul 2, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Bolin LiXiaolin Lu
Sep 27, 2016·Nano Letters·Yao CuiPeter Nordlander
Oct 21, 2016·Bioconjugate Chemistry·Jun RenMingshan Zhao
Oct 5, 2016·The Journal of Physical Chemistry Letters·Yangzhong QinDongping Zhong

❮ Previous
Next ❯

Citations

Nov 26, 2019·Critical Reviews in Food Science and Nutrition·Zhili LiangZhao Yang
May 10, 2019·The Journal of Chemical Physics·Natalia García Rey, Heike Arnolds

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.