148550 20250120165541.0 doi 10.1021/acs.inorgchem.9b02782 sideral 116389 ART-2020-116389 eng Sicilia, Violeta Universidad de Zaragoza (orcid)0000-0002-0257-0483 Highly Photoluminescent Blue Ionic Platinum-Based Emitters 2020 New cycloplatinated N-heterocyclic carbene (NHC) compounds with chelate diphosphines (P<^>P) as ancillary ligands: [Pt(R-C<^>C*)(P<^>P)]PF6 (R= H, P<^>P = dppm (1A), dppe (2A), dppbz (3A); R = CN, P<^>P = dppm (1B), dppe (2B), dppbz (3B)) have been prepared from the corresponding starting material [{Pt(R-C<^>C*)(mu-Cl)}(2)] (R = H, A, R = CN, B) and fully characterized. The new compound A has been prepared by a stepwise protocol. The photophysical properties of 1A-3A and 1B-3B have been widely studied and supported by the time-dependent-density functional theory. These compounds show an efficient blue (dppe, dppbz) or cyan (dppm) emission in PMMA films (5 wt %), with photoluminescence quantum yield (PLQY) ranging from 30% to 87% under an argon atmosphere. This emission has been assigned mainly to transitions from (ILCT)-I-3 [pi(NHC) -> pi*(NHC)] excited states with some (ILCT)-I-3 [pi(NHC) -> pi*(PAP)] character. The electroluminescence of these materials in proof-of-concept solution-processed organic light-emitting diodes containing 3A and 3B as dopants was investigated. The CIE coordinates for devices based on 3A (0.22, 0.41) and 3B (0.24, 0.44) fit within the sky blue region. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/DGA-FSE/E17-17R info:eu-repo/grantAgreement/ES/MICIU-FEDER/PGC2018-094749-B-I00 info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 5.165 2020 CHEMISTRY, INORGANIC & NUCLEAR 5 / 45 = 0.111 2020 Q1 T1 1.348 2020 Chemistry (miscellaneous) 2020 Q1 Physical and Theoretical Chemistry 2020 Q1 Inorganic Chemistry 2020 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Arnal, Lorenzo Universidad de Zaragoza (orcid)0000-0002-0283-9307 Chueca, Andrés J. (orcid)0000-0001-7891-8506 Fuertes, Sara (orcid)0000-0003-1812-3175 Babaei, Azin Igual Muñoz, Ana María Sessolo, Michele Bolink, Henk J. 2010 760 Universidad de Zaragoza Dpto. Química Inorgánica Área Química Inorgánica 59, 2 (2020), 1145-1152 Inorg. chem. Inorganic Chemistry 0020-1669 1077918 http://zaguan.unizar.es/record/148550/files/texto_completo.pdf Postprint 1442921 http://zaguan.unizar.es/record/148550/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:148550 articulos driver 2025-01-20-14:52:53 ARTICLE