Single Molecule Conductance and Junction Formation in Solution. Solvent Effect

0475144 - ÚFCH JH 2018 RIV CZ eng C - Conference Paper (international conference)
Lachmanová, Štěpánka - Šebera, Jakub - Gasior, Jindřich - Dupeyre, G. - Lainé, P. P. - Mészáros, G. - Hromadová, Magdaléna
Single Molecule Conductance and Junction Formation in Solution. Solvent Effect.
XXXVII. Moderní elektrochemické metody. Sborník přednášek mezinárodní odborné konference. Ústí nad Labem: Best servis, 2017 - (Navrátil, T.; Fojta, M.; Schwarzová, K.), s. 118-122. ISBN 978-80-905221-5-2.
[Moderní elektrochemické metody /37./. Jetřichovice (CZ), 15.05.2017-19.05.2017]
R&D Projects: GA ČR(CZ) GA14-05180S; GA ČR GJ16-07460Y
Grant - others:AV ČR(CZ) MTA-16-02
Program: Bilaterální spolupráce
Institutional support: RVO:61388955
Keywords : Single molecule conductance * Expanded pyridinium derivatives * Solvent effect
OECD category: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

The single molecule conductance of expanded pyridinium derivative terminated by pyridyl
nitrogen as an anchoring group at both ends of the molecule in two different environments
was measured by scanning tunneling microscopy break junction technique (STM-BJ). The
values obtained in commonly used 1,3,5-trimethylbenzene (TMB) significantly differ from
the values acquired in a mixture of TMB and ethanol. Markedly lower junction length and
higher conductance indicate strong influence of adsorption of the molecule to the substrate
surface in pure TMB compared to the TMB and ethanol mixture.
Permanent Link: http://hdl.handle.net/11104/0271998