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)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
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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)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. 0
Exportado de SIDERAL (2017-01-09-11:59:44)
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Record created 2017-01-09, last modified 2017-01-09
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