Number of the records: 1
Structure, electrochemistry and spectroscopy of a new diacylhydrazido-bridged diruthenium complex with a strongly near-infrared absorbing RuIIIRuII intermediate
- 1.
SYSNO ASEP 0346411 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Structure, electrochemistry and spectroscopy of a new diacylhydrazido-bridged diruthenium complex with a strongly near-infrared absorbing RuIIIRuII intermediate Author(s) Jana, R. (DE)
Sarkar, B. (DE)
Bubrin, D. (DE)
Fiedler, Jan (UFCH-W) RID, ORCID
Kaim, W. (DE)Source Title Inorganic Chemistry Communications. - : Elsevier - ISSN 1387-7003
Roč. 13, č. 10 (2010), s. 1160-1162Number of pages 3 s. Language eng - English Country NL - Netherlands Keywords crystal structure ; hydrazido ligand ; near-infrared ruthenium Subject RIV CG - Electrochemistry R&D Projects OC 140 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) OC09043 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000281919700014 DOI 10.1016/j.inoche.2010.06.038 Annotation 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). Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2011
Number of the records: 1