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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)
Title | 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) |
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Authors | |
Issue Date | 1994 |
Publisher | Royal 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? |
Abstract | The 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 Identifier | http://hdl.handle.net/10722/168162 |
ISSN | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chan, C | en_US |
dc.contributor.author | Lai, T | en_US |
dc.contributor.author | Che, CM | en_US |
dc.date.accessioned | 2012-10-08T03:15:49Z | - |
dc.date.available | 2012-10-08T03:15:49Z | - |
dc.date.issued | 1994 | en_US |
dc.identifier.citation | Journal Of The Chemical Society, Dalton Transactions, 1994 n. 6, p. 895-899 | en_US |
dc.identifier.issn | 1472-7773 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/168162 | - |
dc.description.abstract | The 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.language | eng | en_US |
dc.publisher | Royal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/dalton | en_US |
dc.relation.ispartof | Journal of the Chemical Society, Dalton Transactions | en_US |
dc.title | 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) | en_US |
dc.type | Article | en_US |
dc.identifier.email | Che, CM:cmche@hku.hk | en_US |
dc.identifier.authority | Che, CM=rp00670 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1039/DT9940000895 | en_US |
dc.identifier.scopus | eid_2-s2.0-37049067569 | en_US |
dc.identifier.issue | 6 | en_US |
dc.identifier.spage | 895 | en_US |
dc.identifier.epage | 899 | en_US |
dc.identifier.isi | WOS:A1994NC13900016 | - |
dc.publisher.place | United Kingdom | en_US |
dc.identifier.scopusauthorid | Chan, C=7404814723 | en_US |
dc.identifier.scopusauthorid | Lai, T=7202203523 | en_US |
dc.identifier.scopusauthorid | Che, CM=7102442791 | en_US |
dc.identifier.issnl | 1364-5447 | - |