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Carboxylate Tolerance of the Redox-Active Platform [Ru(mu-tppz)Ru](n), where tppz=2,3,5,6-Tetrakis(2-pyridyl)pyrazine, in the Electron-Transfer Series [(L)CIRu(mu-tppz)RuCl(L)](n), n=2+, +, 0, -, 2-, with 2-Picolinato, Quinaldato, and 8-Quinolinecarboxylato Ligands (L-)
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SYSNO ASEP 0349257 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Carboxylate Tolerance of the Redox-Active Platform [Ru(mu-tppz)Ru](n), where tppz=2,3,5,6-Tetrakis(2-pyridyl)pyrazine, in the Electron-Transfer Series [(L)CIRu(mu-tppz)RuCl(L)](n), n=2+, +, 0, -, 2-, with 2-Picolinato, Quinaldato, and 8-Quinolinecarboxylato Ligands (L-) Tvůrce(i) Kundu, T. (IN)
Sarkar, B. (DE)
Mondal, T. K. (IN)
Fiedler, Jan (UFCH-W) RID, ORCID
Mobin, S. M. (IN)
Kaim, W. (DE)
Lahiri, G. K. (IN)Zdroj.dok. Inorganic Chemistry. - : American Chemical Society - ISSN 0020-1669
Roč. 49, č. 14 (2010), s. 6565-6574Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova dinuclear ruthenium complexes ; density functional theory ; 2,3,5,6-Tetrakis(2-pyridyl)pyrazine TPPZ Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP ME10124 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy OC09043 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000279621200043 DOI 10.1021/ic100500p Anotace The neutral title complexes [(L1-3)ClRuII(mu-tppz)(RuCl)-Cl-II(L1-3)] [tppz = 2,3,5,6-tetrakis(2-pyridyl)pyrazine with L-1 = 2-picolinate, L-2 = 2-quinolinecarboxylate (quinaldate) and with the hitherto little used L-3 = 8-quinolinecarboxylate] have been structurally characterized as approximately anti- (1 and 3) and syn-configured isomers (2) with L ligand N (1 and 3) or 0 atoms (2) trans to the pyrazine N atoms of tppz. In contrast to 1 and 2 with five-membered chelate rings, complex 3 (which is isomeric with 2) contains six-membered chelate rings. Each system 1-3 thus features a significantly different coordination situation, and all complexes exhibit a considerably distorted tppz bridge, including a twisted central pyrazine ring. In spite of this, double one-electron reduction of the bridge is always possible, as is evident from electron paramagnetic resonance (EPA) and UV/vis spectroelectrochemistry. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2011
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