000169435 001__ 169435
000169435 005__ 20260227133540.0
000169435 0247_ $$2doi$$a10.1021/acs.inorgchem.9b03509
000169435 0248_ $$2sideral$$a117390
000169435 037__ $$aART-2020-117390
000169435 041__ $$aeng
000169435 100__ $$aBoudreault, Pierre-Luc T.
000169435 245__ $$aPreparation and Photophysical Properties of Bis(tridentate) Iridium(III) Emitters: Pincer Coordination of 2, 6-Di(2-pyridyl)phenyl
000169435 260__ $$c2020
000169435 5060_ $$aAccess copy available to the general public$$fUnrestricted
000169435 5203_ $$aThe way to prepare molecular emitters [5t + 4t'] of iridium(III) with a 5t ligand derived from the abstraction of the hydrogen atom at position 2 of the aryl group of 1, 3-di(2-pyridyl)benzene (dpybH) is shown. In addition, the photophysical properties of the new emitters are compared with those of their counterparts resulting from the deprotonation of 1, 3-di(2-pyridyl)-4, 6-dimethylbenzene (dpyMebH), at the same position, which are also synthesized. Treatment of 0.5 equiv of the dimer [Ir(µ-Cl)(¿2-COE)2]2 (COE = cyclooctene) with 1.0 equiv of Hg(dpyb)Cl leads to the iridium(III) derivative IrCl2{¿3-N, C, N-(dpyb)}(¿2-COE) (3), which reacts with 2-(1H-imidazol-2-yl)-6-phenylpyridine (HNImpyC6H5) and 2-(1H-benzimidazol-2-yl)-6-phenylpyridine (HNBzimpyC6H5) in the presence of Na2CO3 to give Ir{¿3-C, N, N-(NImpyC6H4)}{¿3-N, C, N-(dpyb)} (4) and Ir{¿3-C, N, N-(NBzimpyC6H4)}{¿3-N, C, N-(dpyb)} (5), respectively. Similar reactions of the Williams''s dimer [IrCl(µ-Cl){¿3-N, C, N-(dpyMeb)}]2 with HNImpyC6H5 and HNBzimpyC6H5 in the presence of Na2CO3 afford the dimethylated counterparts Ir{¿3-C, N, N-(NImpyC6H4)}{¿3-N, C, N-(dpyMeb)} (6) and Ir{¿3-C, N, N-(NBzimpyC6H4)}{¿3-N, C, N-(dpyMeb)} (7), whereas 2-(6-phenylpyridine-2-yl)-1H-indole (HIndpyC6H5) initially gives IrH{¿2-N, N-(IndpyC6H5)}{¿3-N, C, N-(dpyMeb)} (8) and subsequently Ir{¿3-C, N, N-(IndpyC6H4)}{¿3-N, C, N-(dpyMeb)} (9). Complexes 4-7 are phosphorescent green emitters (¿em 490-550 nm), whereas 9 is greenish yellow emissive (¿em 547-624 nm). They display lifetimes in the range 0.5-9.7 µs and quantum yields in both doped poly(methyl)methacrylate films and in 2-methyltetrahydrofuran at room temperature depending upon the ligands: 0.5-0.7 for 6 and 7, about 0.4 for 4 and 5, and 0.3-0.2 for 9.
000169435 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E06-17R$$9info:eu-repo/grantAgreement/ES/DGA/LMP148-18$$9info:eu-repo/grantAgreement/ES/MINECO-AEI-FEDER/CTQ2017-82935-P$$9info:eu-repo/grantAgreement/ES/MINECO-AEI-FEDER/RED2018-102387-T
000169435 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000169435 590__ $$a5.165$$b2020
000169435 591__ $$aCHEMISTRY, INORGANIC & NUCLEAR$$b5 / 45 = 0.111$$c2020$$dQ1$$eT1
000169435 592__ $$a1.348$$b2020
000169435 593__ $$aChemistry (miscellaneous)$$c2020$$dQ1
000169435 593__ $$aPhysical and Theoretical Chemistry$$c2020$$dQ1
000169435 593__ $$aInorganic Chemistry$$c2020$$dQ1
000169435 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000169435 700__ $$0(orcid)0000-0002-4829-7590$$aEsteruelas, Miguel A.
000169435 700__ $$aGómez-Bautista, Daniel
000169435 700__ $$0(orcid)0000-0002-6608-1910$$aIzquierdo, Susana
000169435 700__ $$0(orcid)0000-0001-7183-4975$$aLópez, Ana M.$$uUniversidad de Zaragoza
000169435 700__ $$0(orcid)0000-0003-2094-719X$$aOñate, Enrique
000169435 700__ $$0(orcid)0000-0001-8609-7947$$aRaga, Esther
000169435 700__ $$aTsai, Jui-Yi
000169435 7102_ $$12010$$2760$$aUniversidad de Zaragoza$$bDpto. Química Inorgánica$$cÁrea Química Inorgánica
000169435 773__ $$g59, 6 (2020), 3838-3849$$pInorg. chem.$$tInorganic Chemistry$$x0020-1669
000169435 8564_ $$s801584$$uhttps://zaguan.unizar.es/record/169435/files/texto_completo.pdf$$yPostprint
000169435 8564_ $$s1062820$$uhttps://zaguan.unizar.es/record/169435/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000169435 909CO $$ooai:zaguan.unizar.es:169435$$particulos$$pdriver
000169435 951__ $$a2026-02-27-12:35:35
000169435 980__ $$aARTICLE