Počet záznamů: 1
Structure, electrochemistry and spectroscopy of a new diacylhydrazido-bridged diruthenium complex with a strongly near-infrared absorbing RuIIIRuII intermediate
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SYSNO ASEP 0346411 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Structure, electrochemistry and spectroscopy of a new diacylhydrazido-bridged diruthenium complex with a strongly near-infrared absorbing RuIIIRuII intermediate Tvůrce(i) Jana, R. (DE)
Sarkar, B. (DE)
Bubrin, D. (DE)
Fiedler, Jan (UFCH-W) RID, ORCID
Kaim, W. (DE)Zdroj.dok. Inorganic Chemistry Communications. - : Elsevier - ISSN 1387-7003
Roč. 13, č. 10 (2010), s. 1160-1162Poč.str. 3 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova crystal structure ; hydrazido ligand ; near-infrared ruthenium Vědní obor RIV CG - Elektrochemie CEP OC 140 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy OC09043 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000281919700014 DOI 10.1016/j.inoche.2010.06.038 Anotace Reaction of Ru(bpy)2Cl2·2 H2O with 1,2-bis(trifluoroacetyl)hydrazine H2(adc-CF3) under basic conditions yields the dinuclear [(μ-adc-CF3){Ru(bpy)2}2]2+ ion which was isolated and crystallized for structure determination in the meso diastereoisomer form as the bis(hexafluorophosphate). The Ru ··Ru distance was determined at 5.029(1) Å, and the N–N bond length at 1.463(5) Å 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 [(μ-adc-CF3){Ru(bpy)2}2]3+ with a comproportionation constant of Kc = 108.8 and an absorption at 1680 nm (ε = 9900 M-1 cm−1) 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, Δg = g1 − g3 = 0.348). Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2011
Počet záznamů: 1