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Article: Electrochemical oxidation of diaquaruthenium(II) complexes of quaterpyridines and crystal structure of [RuL1(PPh3)2][ClO4]2 (L1 = 3″,5,5′,5‴-tetramethyl-2,2′: 6′,2″: 6″,2‴-quaterpyridine)

TitleElectrochemical oxidation of diaquaruthenium(II) complexes of quaterpyridines and crystal structure of [RuL1(PPh3)2][ClO4]2 (L1 = 3″,5,5′,5‴-tetramethyl-2,2′: 6′,2″: 6″,2‴-quaterpyridine)
Authors
Issue Date1994
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton
Citation
Journal Of The Chemical Society, Dalton Transactions, 1994 n. 6, p. 895-899 How to Cite?
AbstractThe perchlorate salts of [RuL2(OH2)2]2+ 1 and [RuL1(OH2)2]2+ 2 (L2 = 2,2′:6′,2″:6″,2‴-quaterpyridine, L1 = 3″,5,5′,5‴-tetramethyl-2,2′:6′,2″:6″, 2‴-quaterpyridine) have been isolated. In acidic solutions both 1 and 2 exhibit reversible RuVI-RuIV and RuIII-RuII couples, though the RuIV-RuIII couples are only quasireversible. The effect of pH on the E1/2 of these couples has been investigated. At pH 1, the E°values of the [RuL2O2]2+-[RuL2(O)(OH 2)]2+ and [RuL1O2]2+-[RuL1(O)(OH 2)]2+ couples are 1.12 and 1.05 V vs. saturated calomel electrode respectively. The crystal structure of [RuL1(PPh3)2][ClO4] 2·MeCN·H2O has been determined: monoclinic space group P21/n, a = 13.210(4), b = 29.711(7), c = 14.878(3) Å, β = 98.89(2)°, Z = 4. In this complex the quaterpyridine ligand adopts a non-planar conformation with a dihedral angle of 28.3° between the two central pyridyl rings. The two triphenylphosphine ligands are in a trans configuration [P(1)-Ru-P(2) 177.6°]. The complex [RuL2(OH2)2]2+ is an active catalyst for the electrochemical oxidation of propan-2-ol.
Persistent Identifierhttp://hdl.handle.net/10722/168162
ISSN
2002 Impact Factor: 3.023
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChan, Cen_US
dc.contributor.authorLai, Ten_US
dc.contributor.authorChe, CMen_US
dc.date.accessioned2012-10-08T03:15:49Z-
dc.date.available2012-10-08T03:15:49Z-
dc.date.issued1994en_US
dc.identifier.citationJournal Of The Chemical Society, Dalton Transactions, 1994 n. 6, p. 895-899en_US
dc.identifier.issn1472-7773en_US
dc.identifier.urihttp://hdl.handle.net/10722/168162-
dc.description.abstractThe perchlorate salts of [RuL2(OH2)2]2+ 1 and [RuL1(OH2)2]2+ 2 (L2 = 2,2′:6′,2″:6″,2‴-quaterpyridine, L1 = 3″,5,5′,5‴-tetramethyl-2,2′:6′,2″:6″, 2‴-quaterpyridine) have been isolated. In acidic solutions both 1 and 2 exhibit reversible RuVI-RuIV and RuIII-RuII couples, though the RuIV-RuIII couples are only quasireversible. The effect of pH on the E1/2 of these couples has been investigated. At pH 1, the E°values of the [RuL2O2]2+-[RuL2(O)(OH 2)]2+ and [RuL1O2]2+-[RuL1(O)(OH 2)]2+ couples are 1.12 and 1.05 V vs. saturated calomel electrode respectively. The crystal structure of [RuL1(PPh3)2][ClO4] 2·MeCN·H2O has been determined: monoclinic space group P21/n, a = 13.210(4), b = 29.711(7), c = 14.878(3) Å, β = 98.89(2)°, Z = 4. In this complex the quaterpyridine ligand adopts a non-planar conformation with a dihedral angle of 28.3° between the two central pyridyl rings. The two triphenylphosphine ligands are in a trans configuration [P(1)-Ru-P(2) 177.6°]. The complex [RuL2(OH2)2]2+ is an active catalyst for the electrochemical oxidation of propan-2-ol.en_US
dc.languageengen_US
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/daltonen_US
dc.relation.ispartofJournal of the Chemical Society, Dalton Transactionsen_US
dc.titleElectrochemical oxidation of diaquaruthenium(II) complexes of quaterpyridines and crystal structure of [RuL1(PPh3)2][ClO4]2 (L1 = 3″,5,5′,5‴-tetramethyl-2,2′: 6′,2″: 6″,2‴-quaterpyridine)en_US
dc.typeArticleen_US
dc.identifier.emailChe, CM:cmche@hku.hken_US
dc.identifier.authorityChe, CM=rp00670en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1039/DT9940000895en_US
dc.identifier.scopuseid_2-s2.0-37049067569en_US
dc.identifier.issue6en_US
dc.identifier.spage895en_US
dc.identifier.epage899en_US
dc.identifier.isiWOS:A1994NC13900016-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridChan, C=7404814723en_US
dc.identifier.scopusauthoridLai, T=7202203523en_US
dc.identifier.scopusauthoridChe, CM=7102442791en_US

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