This research aimed to synthesise iridium(III) complexes with N-heterocyclic carbene (NHC)    ligands   and   investigate   their   photophysical   properties.   Complexes   of  chlorobis(2,4-difluorophenylpyridine)(pyridyltriazole)iridium(III)                               (C1), bis(2,4-difluorophenylpyridine)(4-methylbenzylpyridyltriazole)iridium(III)     ion     (C2),  bis(2,4-difluorophenylpyridine)(hexylpyridyltriazole)iridium(III)       ion       (C3)       and  bis(2,4-difluorophenylpyridine)(2,6-difluorobenzylpyridyltriazole)iridium(III)    ion    (C4) were     synthesised    by    reaction    between    dichloro-bridged    iridium(III)    dimer,  [Ir(2,4-F2ppy)2(μ-Cl)]2 and corresponding triazolium salts. Iridium(III) complexes were  characterised by Carbon, Hydrogen, Nitrogen and Sulphur (CHNS) elemental analyser and   spectroscopic  techniques:  ¹H  and  ¹³C  Nuclear  Magnetic  Re.....

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This study aims to synthesise and characterise new blue phosphorescent iridium(III) complexes and investigate their structural and photophysical properties through experimental techniques and theoretical calculations. Complexes of bis(phenylpyridine)(2,6- difluorobenzylpyridinylformimidamide) iridium(III) (IR1), bis(2,4- difluorophenylpyridine)(2,6- difluorobenzylpyridinylformimidamide)iridium(III) (IR2), bis(phenylpyridine)(4- methylbenzylpyridinylformimidamide)iridium(III) (IR3) and bis(2,4- difluorophenylpyridine)(4- methylbenzylpyridinylformimidamide)iridium(III) (IR4) were synthesised by reaction between dichloro-bridged iridium(III) dimers with the respective triazolium salts. Characterisation was conducted using carbon, hydrogen and nitrogen (CHN) elemental analyser and spectroscopic techniques: nuclear magnetic resonance (NMR), Fourier transform-infrared (FT-IR) and liquid chromatography-mass spectrometry (LC-MS). Photophysical properties were examined using ultravioletvisible .....

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