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Article: Application of 2,6-diphenylpyridine as a tridentate [C∧N∧C] dianionic ligand in organogold(III) chemistry. structural and spectroscopic properties of mono- and binuclear transmetalated gold(III) complexes

TitleApplication of 2,6-diphenylpyridine as a tridentate [C∧N∧C] dianionic ligand in organogold(III) chemistry. structural and spectroscopic properties of mono- and binuclear transmetalated gold(III) complexes
Authors
Issue Date1998
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/organometallics
Citation
Organometallics, 1998, v. 17 n. 16, p. 3505-3511 How to Cite?
AbstractThe synthesis of a series of mono- and binuclear cyclometalated gold(III) complexes containing the tridentate C∧N∧C ligand (HC∧N∧CH = 2,6-diphenylpyridine) was developed using K[AuCl4] and the organomercury(II) compound Hg(C∧N∧CH)Cl as precursors. The molecular structures of [Au(C∧N∧C)(Spy-2)] (Spy-2 = 2-mercaptopyridine), [Au(C∧N∧C)PPh3]-ClO4, [Au2(C∧N∧C) 2(μ-dppm)](CIO4)2, and [Au2(C∧N∧C) 2(μ-dppe)](CIO4)2 have been determined by X-ray crystallography. In the crystal lattice of [Au2(C∧N∧C) 2(μ-dppm)](CIO4)2 and [Au2-(C∧N∧C) 2(μ-dppe)](ClO4)2, interplanar separations of 3.4 Å are observed between the intramolecular [Au(C∧N∧C)] moieties, which imply the presence of weak π-π interactions. The torsion angle between the two [Au(C∧N∧C)] units in the former is 8.7°, while a larger angle (34.2°) is observed in the latter. In the absorption spectra, the binuclear complexes show a red shift for the absorption band in the near-visible region compared to the mononuclear analogues. This is attributed to π-π interactions between the intramolecular C∧N∧C ligands in solution. The new complexes are emissive at low temperatures (77 K) in acetonitrile.
Persistent Identifierhttp://hdl.handle.net/10722/167359
ISSN
2015 Impact Factor: 4.186
2015 SCImago Journal Rankings: 2.043
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWong, KHen_US
dc.contributor.authorCheung, KKen_US
dc.contributor.authorChan, MCWen_US
dc.contributor.authorChe, CMen_US
dc.date.accessioned2012-10-08T03:06:00Z-
dc.date.available2012-10-08T03:06:00Z-
dc.date.issued1998en_US
dc.identifier.citationOrganometallics, 1998, v. 17 n. 16, p. 3505-3511en_US
dc.identifier.issn0276-7333en_US
dc.identifier.urihttp://hdl.handle.net/10722/167359-
dc.description.abstractThe synthesis of a series of mono- and binuclear cyclometalated gold(III) complexes containing the tridentate C∧N∧C ligand (HC∧N∧CH = 2,6-diphenylpyridine) was developed using K[AuCl4] and the organomercury(II) compound Hg(C∧N∧CH)Cl as precursors. The molecular structures of [Au(C∧N∧C)(Spy-2)] (Spy-2 = 2-mercaptopyridine), [Au(C∧N∧C)PPh3]-ClO4, [Au2(C∧N∧C) 2(μ-dppm)](CIO4)2, and [Au2(C∧N∧C) 2(μ-dppe)](CIO4)2 have been determined by X-ray crystallography. In the crystal lattice of [Au2(C∧N∧C) 2(μ-dppm)](CIO4)2 and [Au2-(C∧N∧C) 2(μ-dppe)](ClO4)2, interplanar separations of 3.4 Å are observed between the intramolecular [Au(C∧N∧C)] moieties, which imply the presence of weak π-π interactions. The torsion angle between the two [Au(C∧N∧C)] units in the former is 8.7°, while a larger angle (34.2°) is observed in the latter. In the absorption spectra, the binuclear complexes show a red shift for the absorption band in the near-visible region compared to the mononuclear analogues. This is attributed to π-π interactions between the intramolecular C∧N∧C ligands in solution. The new complexes are emissive at low temperatures (77 K) in acetonitrile.en_US
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/organometallicsen_US
dc.relation.ispartofOrganometallicsen_US
dc.titleApplication of 2,6-diphenylpyridine as a tridentate [C∧N∧C] dianionic ligand in organogold(III) chemistry. structural and spectroscopic properties of mono- and binuclear transmetalated gold(III) complexesen_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.doi10.1021/om980274j-
dc.identifier.scopuseid_2-s2.0-0001678633en_US
dc.identifier.hkuros40260-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0001678633&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume17en_US
dc.identifier.issue16en_US
dc.identifier.spage3505en_US
dc.identifier.epage3511en_US
dc.identifier.isiWOS:000075378500018-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridWong, KH=7404758953en_US
dc.identifier.scopusauthoridCheung, KK=7402406613en_US
dc.identifier.scopusauthoridChan, MCW=7402598116en_US
dc.identifier.scopusauthoridChe, CM=7102442791en_US

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