Structure, electrochemistry and spectroscopy of a new diacylhydrazido-bridged diruthenium complex with a strongly near-infrared absorbing RuIIIRuII intermediate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F10%3A00346411" target="_blank" >RIV/61388955:_____/10:00346411 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Structure, electrochemistry and spectroscopy of a new diacylhydrazido-bridged diruthenium complex with a strongly near-infrared absorbing RuIIIRuII intermediate

Popis výsledku v původním jazyce

Reaction of Ru(bpy)2Cl22 H2O with 1,2-bis(trifluoroacetyl)hydrazine H2(adc-CF3) under basic conditions yields the dinuclear [(?-adc-CF3){Ru(bpy)2}2]2+ ion which was isolated and crystallized for structure determination in the meso diastereoisomer form asthe bis(hexafluorophosphate). The Ru Ru distance was determined at 5.029(1) ?, and the N?N bond length at 1.463(5) ? reveals a hydrazido(2) form of the bridge, implying unchanged + II metal oxidation states. Besides bpy-based reduction, the cyclic voltammetric analysis revealed two oxidation waves with a (3+) intermediate. Spectroelectrochemistry demonstrated that this intermediate [(?-adc-CF3){Ru(bpy)2}2]3+ with a comproportionation constant of Kc = 108.8 and an absorption at 1680 nm (? = 9900 M-1 cm1) is a mixed-valent species as evident most convincingly from the EPR parameters at g1 = 2.239, g2 = 2.065, g3 = 1.891 (gav = 2.101, ?g = g1 g3 = 0.348).

Název v anglickém jazyce

Structure, electrochemistry and spectroscopy of a new diacylhydrazido-bridged diruthenium complex with a strongly near-infrared absorbing RuIIIRuII intermediate

Popis výsledku anglicky

Reaction of Ru(bpy)2Cl22 H2O with 1,2-bis(trifluoroacetyl)hydrazine H2(adc-CF3) under basic conditions yields the dinuclear [(?-adc-CF3){Ru(bpy)2}2]2+ ion which was isolated and crystallized for structure determination in the meso diastereoisomer form asthe bis(hexafluorophosphate). The Ru Ru distance was determined at 5.029(1) ?, and the N?N bond length at 1.463(5) ? reveals a hydrazido(2) form of the bridge, implying unchanged + II metal oxidation states. Besides bpy-based reduction, the cyclic voltammetric analysis revealed two oxidation waves with a (3+) intermediate. Spectroelectrochemistry demonstrated that this intermediate [(?-adc-CF3){Ru(bpy)2}2]3+ with a comproportionation constant of Kc = 108.8 and an absorption at 1680 nm (? = 9900 M-1 cm1) is a mixed-valent species as evident most convincingly from the EPR parameters at g1 = 2.239, g2 = 2.065, g3 = 1.891 (gav = 2.101, ?g = g1 g3 = 0.348).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Inorganic Chemistry Communications

ISSN

1387-7003

e-ISSN

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Svazek periodika

13

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

3

Strana od-do

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Kód UT WoS článku

000281919700014

EID výsledku v databázi Scopus

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