Počet záznamů: 1
Mixed-valency with cyanides as terminal ligands: Diruthenium(III,II) complexes with the 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine bridge and variable co-ligands (CN- vs. bpy or NH3)
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SYSNO ASEP 0341711 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Mixed-valency with cyanides as terminal ligands: Diruthenium(III,II) complexes with the 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine bridge and variable co-ligands (CN- vs. bpy or NH3) Tvůrce(i) Vergara, M. M. (AR)
García Posse, M. E. (AR)
Fagalde, F. (AR)
Katz, N. E. (AR)
Fiedler, Jan (UFCH-W) RID, ORCID
Sarkar, B. (DE)
Sieger, M. (DE)
Kaim, W. (DE)Zdroj.dok. Inorganica chimica acta. - : Elsevier - ISSN 0020-1693
Roč. 363, č. 1 (2010), s. 163-167Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova cyano ligands ; mixed-valency ; Ruthenium complexes 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 000272205800021 DOI 10.1016/j.ica.2009.09.018 Anotace New diruthenium complexes (PPN)(4)[(NC)(4)Ru(mu-bptz)Ru(CN)(4)], (PPN)(4) 1, and [(bpy)(2)Ru(mu-bptz)Ru(CN)(4)], 2, (PPN+ = bis(triphenylphospine)iminium; bptz = 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine; bpy = 2,2'-bipyridine), were synthesised and characterised by spectroscopic and electrochemical techniques. The comproportionation constant K-c = 10(7.0) of the mixed-valent species [(NC)(4)Ru(mu-bptz)Ru(CN)(4)](3) as obtained by oxidation of 1(4) in CH3CN is much lower than the K-c = 10(15.0) previously detected for [(H3N)(4)Ru(bptz)-Ru(NH3)(4)](5+), reflecting the competition between CN and bptz for the p-electron density of the metals. Comparison with several other bptz-bridged diruthenium(II, III)complexes reveals an approximate correlation between K-c and the diminishing effective pi acceptor capacity of the ancillary terminal ligands. 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