Spectroelectrochemical Properties of 1,10-Phenanthroline Substituted by Phenothiazine and Carbazole Redox-active Units

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F21%3A00544597" target="_blank" >RIV/61388955:_____/21:00544597 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0321437" target="_blank" >http://hdl.handle.net/11104/0321437</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/celc.202100835" target="_blank" >10.1002/celc.202100835</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spectroelectrochemical Properties of 1,10-Phenanthroline Substituted by Phenothiazine and Carbazole Redox-active Units

Popis výsledku v původním jazyce

Complexes of 1,10-phenanthrolines with cations of transition metals have broad range of applications. This work aims at designing and investigating phenothiazine and carbazole substituted 1,10-phenanthrolines as ligands for future complexes with transient metal cations. The combined electrochemical, spectroelectrochemical and DFT studies were employed to demonstrate the effect of broken symmetry in substituted 4,7-di(phenothiazine)-1,10-phenanthrolines on their spectroelectrochemical properties. A reversible color change (new absorption band around 500 nm) due to phenothiazine radical cation was observed in the first oxidation step. Results further indicate that phenothiazine substituents behave as two equivalent but almost electronically isolated redox centres. The work additionally presents a comprehensive reaction mechanistic study of oxidation and reduction processes complemented by HPLC-MS/MS identification.n

Název v anglickém jazyce

Spectroelectrochemical Properties of 1,10-Phenanthroline Substituted by Phenothiazine and Carbazole Redox-active Units

Popis výsledku anglicky

Complexes of 1,10-phenanthrolines with cations of transition metals have broad range of applications. This work aims at designing and investigating phenothiazine and carbazole substituted 1,10-phenanthrolines as ligands for future complexes with transient metal cations. The combined electrochemical, spectroelectrochemical and DFT studies were employed to demonstrate the effect of broken symmetry in substituted 4,7-di(phenothiazine)-1,10-phenanthrolines on their spectroelectrochemical properties. A reversible color change (new absorption band around 500 nm) due to phenothiazine radical cation was observed in the first oxidation step. Results further indicate that phenothiazine substituents behave as two equivalent but almost electronically isolated redox centres. The work additionally presents a comprehensive reaction mechanistic study of oxidation and reduction processes complemented by HPLC-MS/MS identification.n

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/GA19-03160S" target="_blank" >GA19-03160S: Elektrochemická studie nových umělých enzymů a jejich role v analýze neurotransmiterů</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

ChemElectroChem

ISSN

2196-0216

e-ISSN

2196-0216

Svazek periodika

8

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

2935-2943

Kód UT WoS článku

000690906100024

EID výsledku v databázi Scopus

2-s2.0-85113735562