0000000000264073

AUTHOR

Guohua Xie

0000-0003-0764-7889

showing 5 related works from this author

Green phosphorescence and electroluminescence of sulfur pentafluoride-functionalized cationic iridium(III) complexes

2015

EZ-C acknowledges the University of St Andrews for financial support. We report four cationic iridium(III) complexes [Ir(C^N)2(dtBubpy)](PF6) that have sulfurpentafluoride-modified 1-phenylpyrazole and 2-phenylpyridine cyclometalating (C^N) ligands (dtBubpy = 4,4'-di-tert-butyl-2,2'-bipyridyl). Three of the complexes were characterized by single-crystal X-ray structure analysis. In cyclic voltammetry, the complexes undergo reversible oxidation of iridium(III) and irreversible reduction of the SF5 group. They emit bright green phosphorescence in acetonitrile solution and in thin films at room temperature, with emission maxima between 482–519 nm and photoluminescence quantum yields of up to 7…

Photoluminescencechemistry.chemical_elementChemistry Techniques SyntheticCrystallography X-RayIridiumLigandsPhotochemistryInorganic ChemistryFluorideschemistry.chemical_compoundOrganometallic CompoundsQDIridiumPhysical and Theoretical ChemistryAcetonitrileTrifluoromethylMolecular StructureSulfur CompoundsCationic polymerizationDASElectrochemical TechniquesEquipment DesignQD ChemistrySulfurchemistryLuminescent MeasurementsCyclic voltammetryPhosphorescence
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Light-emitting electrochemical cells and solution-processed organic light-emitting diodes using small molecule organic thermally activated delayed fl…

2015

EZ-C thanks the University of St Andrews for support. The authors are grateful to the EPSRC for financial support (grants EP/J01771X and EP/J00916). IDWS is a Royal Society Wolfson Research Merit Award Holder. Two novel charged organic thermally activated delayed fluorescence (TADF) emitters, 1 and 2, have been synthesized. Their TADF behavior is well-supported by the multiexponential decay of their emission (nanosecond and microsecond components) and the oxygen dependence of the photoluminescence quantum yields. Spin-coated electroluminescent devices have been fabricated to make light-emitting electrochemical cells (LEECs) and organic light-emitting diodes (OLEDs). The first example of a n…

NDASQDQD ChemistryBDC
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CCDC 1053872: Experimental Crystal Structure Determination

2015

Related Article: Nail M. Shavaleev, Guohua Xie, Shinto Varghese, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortí, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2015|Inorg.Chem.|54|5907|doi:10.1021/acs.inorgchem.5b00717

(44'-di-t-butyl-22'-bipyridine)-bis(4-(pentafluorosulfanyl)-2-(1H-pyrazol-1-yl)phenyl)-iridium(iii) hexafluorophosphate dichloromethane solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1053870: Experimental Crystal Structure Determination

2015

Related Article: Nail M. Shavaleev, Guohua Xie, Shinto Varghese, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortí, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2015|Inorg.Chem.|54|5907|doi:10.1021/acs.inorgchem.5b00717

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(44'-di-t-butyl-22'-bipyridine)-bis(5-(pentafluorosulfanyl)-2-(pyridin-2-yl)phenyl)-iridium(iii) hexafluorophosphateExperimental 3D Coordinates
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CCDC 1053871: Experimental Crystal Structure Determination

2015

Related Article: Nail M. Shavaleev, Guohua Xie, Shinto Varghese, David B. Cordes, Alexandra M. Z. Slawin, Cristina Momblona, Enrique Ortí, Henk J. Bolink, Ifor D. W. Samuel, Eli Zysman-Colman|2015|Inorg.Chem.|54|5907|doi:10.1021/acs.inorgchem.5b00717

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(44'-di-t-butyl-22'-bipyridine)-bis(5-(pentafluorosulfanyl)-2-(1H-pyrazol-1-yl)phenyl)-iridium(iii) hexafluorophosphate dichloromethane solvateExperimental 3D Coordinates
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