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Divalent ansa-Octaphenyllanthanocenes: Synthesis, Structures, and EuII Luminescence.

hal.structure.identifierJames Cook University [JCU]
dc.contributor.authorSHEPHARD, Angus
hal.structure.identifierJames Cook University [JCU]
hal.structure.identifierInstitut de Chimie Moléculaire de Reims - UMR 7312 [ICMR]
dc.contributor.authorDELON, Aymeric
hal.structure.identifierInstitut de Chimie Moléculaire de Reims - UMR 7312 [ICMR]
dc.contributor.authorCHEVREUX, Sylviane
hal.structure.identifierInstitut de Chimie Moléculaire de Reims - UMR 7312 [ICMR]
dc.contributor.authorMARTINEZ, Agathe
hal.structure.identifierJames Cook University [JCU]
dc.contributor.authorGUO, Zhifang
hal.structure.identifierMonash University [Clayton]
dc.contributor.authorDEACON, Glen
hal.structure.identifierInstitut de Chimie Moléculaire de Reims - UMR 7312 [ICMR]
dc.contributor.authorLEMERCIER, Gilles
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorMCCLENAGHAN, Nathan
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorJONUSAUSKAS, Gediminas
hal.structure.identifierJames Cook University [JCU]
dc.contributor.authorJUNK, Peter
hal.structure.identifierInstitut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier [ICGM]
dc.contributor.authorJAROSCHIK, Florian
dc.date.issued2023-06-13
dc.identifier.issn0020-1669
dc.description.abstractEnReductive dimerization of fulvenes using low-valent metal precursors is a straightforward one-step approach to access ethylene-bridged metallocenes. This process has so far mainly been employed with fulvenes carrying one or two substituents in the exocyclic position. In this work, a new synthesis of the unsubstituted exocyclic 1,2,3,4-tetraphenylfulvene (1), its full structural characterization by NMR spectroscopy and single-crystal X-ray diffraction, as well as some photophysical properties and its first use in reductive dimerization are described. This fulvene reacted with different lanthanoid metals in thf to provide the divalent ansa-octaphenylmetallocenes [Ln(C5Ph4CH2)2(thf)n] (Ln = Sm, n = 2 (2); Ln = Eu, n = 2 (3); and Ln = Yb, n = 1 (4)). These complexes were characterized by X-ray diffraction, laser desorption/ionization time of flight mass spectrometry, and, in the case of Sm and Yb, multinuclear NMR spectroscopy, showing the influence of the ansa-bridge on solution and solid-state structures compared to previously reported unbridged metallocenes. Furthermore, the luminescence properties of the Eu ansa complex 3 were studied in solution and the solid state, revealing significant differences with the known octa- and deca-phenyleuropocenes, [Eu(C5Ph4H)2(dme)] and [Eu(C5Ph5)2].
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enLanthanides
dc.subject.enLigands
dc.subject.enLuminescence
dc.subject.enMetals
dc.subject.enSolutions
dc.title.enDivalent ansa-Octaphenyllanthanocenes: Synthesis, Structures, and EuII Luminescence.
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.inorgchem.3c01062
dc.subject.halChimie/Chimie de coordination
bordeaux.journalInorganic Chemistry
bordeaux.peerReviewedoui
hal.identifierhal-04236603
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04236603v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Inorganic%20Chemistry&rft.date=2023-06-13&rft.eissn=0020-1669&rft.issn=0020-1669&rft.au=SHEPHARD,%20Angus&DELON,%20Aymeric&CHEVREUX,%20Sylviane&MARTINEZ,%20Agathe&GUO,%20Zhifang&rft.genre=article


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