Charge transfer in self-assembled monolayers of molecular conductors containing tripodal anchor and terpyridine-metal redox switching element

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F21%3A00542198" target="_blank" >RIV/61388955:_____/21:00542198 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0319672" target="_blank" >http://hdl.handle.net/11104/0319672</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.electacta.2021.138302" target="_blank" >10.1016/j.electacta.2021.138302</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Charge transfer in self-assembled monolayers of molecular conductors containing tripodal anchor and terpyridine-metal redox switching element

Popis výsledku v původním jazyce

This work presents charge transfer characteristics of molecular switches based on [M(terpyridine)2]2+/3+ (M = Ru, Os) electroactive element functionalized by a tripodal thiol-based anchoring platform allowing the formation of self-assembled monolayers (SAMs). It is demonstrated that the Os-tripod compound forms more compact film with less pronounced repulsive interactions among individual [M(terpyridine)2]2+/3+ units compared to Ru-tripod compound. The electron transfer rate constants were determined from cyclic voltammograms and electrochemical impedance spectra by three independent methods. The value of 1.4 × 103 s–1 was obtained for Os-tripod SAM and 1.6 × 103 s–1 for that of Ru-tripod SAM. These values are almost one order of magnitude higher than those reported in the literature for osmium and ruthenium dipodal thiol-based anchors and more than two orders of magnitude higher than those reported for single monopodal aliphatic anchoring groups.

Název v anglickém jazyce

Charge transfer in self-assembled monolayers of molecular conductors containing tripodal anchor and terpyridine-metal redox switching element

Popis výsledku anglicky

This work presents charge transfer characteristics of molecular switches based on [M(terpyridine)2]2+/3+ (M = Ru, Os) electroactive element functionalized by a tripodal thiol-based anchoring platform allowing the formation of self-assembled monolayers (SAMs). It is demonstrated that the Os-tripod compound forms more compact film with less pronounced repulsive interactions among individual [M(terpyridine)2]2+/3+ units compared to Ru-tripod compound. The electron transfer rate constants were determined from cyclic voltammograms and electrochemical impedance spectra by three independent methods. The value of 1.4 × 103 s–1 was obtained for Os-tripod SAM and 1.6 × 103 s–1 for that of Ru-tripod SAM. These values are almost one order of magnitude higher than those reported in the literature for osmium and ruthenium dipodal thiol-based anchors and more than two orders of magnitude higher than those reported for single monopodal aliphatic anchoring groups.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/GA21-13458S" target="_blank" >GA21-13458S: Přepínání vodivosti v jednotlivých elektroaktivních molekulách.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Electrochimica acta

ISSN

0013-4686

e-ISSN

1873-3859

Svazek periodika

384

Číslo periodika v rámci svazku

JUL 2021

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

138302

Kód UT WoS článku

000663085500013

EID výsledku v databázi Scopus

2-s2.0-85105316977