Tetrazine Chelate Ligands Bridging Two [Ru(acac)(2)] Fragments: Mixed Valency and Radical Complex Formation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F22%3A00558484" target="_blank" >RIV/61388955:_____/22:00558484 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0332128" target="_blank" >http://hdl.handle.net/11104/0332128</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/zaac.202200152" target="_blank" >10.1002/zaac.202200152</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tetrazine Chelate Ligands Bridging Two [Ru(acac)(2)] Fragments: Mixed Valency and Radical Complex Formation

Popis výsledku v původním jazyce

Using bis(3-methyl-2-pyridyl)-1,2,4,5-tetrazine 1, 3-(2-pyrimidyl)-6-methyl-1,2,4,5-tetrazine 2 and bis(2-pyrimidyl)-1,2,4,5-tetrazine=bmtz as ligands, the complexes 3=[Ru(acac)(2)(1)], 4={[Ru(acac)(2)](2)(1)], 5={[Ru(acac)(2)](2)(bmtz)], and 6={[Ru(acac)(2)](2)(2)] were prepared and identified by structure analysis of crystallized material. The one-electron oxidized form 6(PF6) was also studied structurally, suggesting a Class II mixed-valent situation. The neutral dinuclear systems exhibit two reversible oxidation processes with comproportionation constants 10(9.2)<K-c<10(14.1) and one reduction which were analyzed UV/vis/NIR and EPR spectroscopically. Oxidation produces largely metal-based mixed-valent cations with very weak intervalence absorptions in the near IR whereas the electron uptake occurs at the tetrazine acceptor.

Název v anglickém jazyce

Tetrazine Chelate Ligands Bridging Two [Ru(acac)(2)] Fragments: Mixed Valency and Radical Complex Formation

Popis výsledku anglicky

Using bis(3-methyl-2-pyridyl)-1,2,4,5-tetrazine 1, 3-(2-pyrimidyl)-6-methyl-1,2,4,5-tetrazine 2 and bis(2-pyrimidyl)-1,2,4,5-tetrazine=bmtz as ligands, the complexes 3=[Ru(acac)(2)(1)], 4={[Ru(acac)(2)](2)(1)], 5={[Ru(acac)(2)](2)(bmtz)], and 6={[Ru(acac)(2)](2)(2)] were prepared and identified by structure analysis of crystallized material. The one-electron oxidized form 6(PF6) was also studied structurally, suggesting a Class II mixed-valent situation. The neutral dinuclear systems exhibit two reversible oxidation processes with comproportionation constants 10(9.2)<K-c<10(14.1) and one reduction which were analyzed UV/vis/NIR and EPR spectroscopically. Oxidation produces largely metal-based mixed-valent cations with very weak intervalence absorptions in the near IR whereas the electron uptake occurs at the tetrazine acceptor.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

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

2022

Kód důvěrnosti údajů

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

Název periodika

Zeitschrift für anorganische und allgemeine Chemie

ISSN

0044-2313

e-ISSN

1521-3749

Svazek periodika

648

Číslo periodika v rámci svazku

23

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

9

Strana od-do

e202200152

Kód UT WoS článku

000810020700001

EID výsledku v databázi Scopus

2-s2.0-85131725613