Stepwise strategy to cyclometallated PtII complexes with N-heterocyclic carbene ligands: A luminescence study on new ß-diketonate complexes
Fuertes Lorda, Sara ; Garcia Ballesteros, Hector ; Perálvarez, M. ; Hertog, W. ; Carreras, J. ; Sicilia Martínez, María Violeta (Universidad de Zaragoza)
Resumen: The imidazolium salt 3-methyl-1-(naphthalen-2-yl)-1H-imidazolium iodide (2) has been treated with silver(I) oxide and [{Pt(mu-Cl)(eta(3)-2-Me-C3H4)}(2)] (eta(3)-2-Me-C3H4 = eta(3)-2-methylallyl) to give the intermediate N-heterocyclic carbene complex [PtCl(eta(3)-2-Me-C3H4)(H (CC) over cap*-kappa C*)] (3) (H (CC) over cap*-kappa C* = 3-methyl-1-(naphthalen-2-yl)-1H-imidazol-2-ylidene). Compound 3 undergoes regiospecific cyclometallation at the naphthyl ring of the NHC ligand to give the five-membered platinacycle compound [{Pt(mu-Cl)((CC) over cap*)}(2)] (4). Chlorine abstraction from 4 with beta-diketonate Tl derivatives rendered the corresponding neutral compounds [Pt((CC) over cap*)(L-O,O')] {L = acac (HL = acetylacetone) 5, phacac (HL = 1,3-diphenyl-1,3-propanedione) 6, hfacac (HL = hexafluoroacetylacetone) 7}. All of the compounds (3-7) were fully characterized by standard spectroscopic and analytical methods. X-ray diffraction studies were performed on 5-7, revealing short Pt-Pt and pi-pi interactions in the solid-state structure. The influence of the R-substituents of the beta-diketonate ligand on the photophysical properties and the use of the most efficient emitter, 5, as phosphor converter has also been studied.
Idioma: Inglés
DOI: 10.1002/chem.201404915
Año: 2015
Publicado en: CHEMISTRY-A EUROPEAN JOURNAL 21, 4 (2015), 1620-1631
ISSN: 0947-6539
Factor impacto JCR: 5.771 (2015)
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 24 / 162 = 0.148 (2015) - Q1 - T1
Financiación: info:eu-repo/grantAgreement/ES/MICINN/CTQ2008-06669-C02-01-BQU
Financiación: info:eu-repo/grantAgreement/EUR/FP7/PEOPLE-COFUNF-2008-246558
Financiación: info:eu-repo/grantAgreement/ES/MINECO/TEC2012-38901-C02-01
Tipo y forma: Article (PostPrint)
Área (Departamento): Química Inorgánica (Departamento de Química Inorgánica)
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Exportado de SIDERAL (2017-01-09-11:59:44)
Idioma: Inglés
DOI: 10.1002/chem.201404915
Año: 2015
Publicado en: CHEMISTRY-A EUROPEAN JOURNAL 21, 4 (2015), 1620-1631
ISSN: 0947-6539
Factor impacto JCR: 5.771 (2015)
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 24 / 162 = 0.148 (2015) - Q1 - T1
Financiación: info:eu-repo/grantAgreement/ES/MICINN/CTQ2008-06669-C02-01-BQU
Financiación: info:eu-repo/grantAgreement/EUR/FP7/PEOPLE-COFUNF-2008-246558
Financiación: info:eu-repo/grantAgreement/ES/MINECO/TEC2012-38901-C02-01
Tipo y forma: Article (PostPrint)
Área (Departamento): Química Inorgánica (Departamento de Química Inorgánica)
0
Exportado de SIDERAL (2017-01-09-11:59:44)
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articulos > articulos-por-area > quimica_inorganica
Notice créée le 2017-01-09, modifiée le 2017-01-09
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