Oxygen and temperature sensitivity of blue to green to yellow light-emitting Pt(ii) complexes

Phosphorescent platinum(ii) complexes bearing pentafluorosulfanyl substituted cyclometalating ligands

“…However, the photophysics of [Pt(ppy)(acac)] (where acac is pentane-3,5-dionate) has been reported in DCM (l PL ¼ 485 nm). 30 This value falls between those reported 34 for two complexes bearing electron-withdrawing -BMes 2 substituents in a meta (l PL ¼ 538 nm) and para (l PL ¼ 481 nm) relationship with respect to the Pt-C C^N , analogous to the trend we observe for 1-3.…”

Thermally Activated Delayed Fluorescence (TADF) and Enhancing Photoluminescence Quantum Yields of [CuI(diimine)(diphosphine)]+ Complexes—Photophysical, Structural, and Computational Studies

“…Transition metal complexes are of great interest for electroluminescent devices such as organic lightemitting diodes (OLEDs), 1-6 light-emitting electrochemical cells (LEECs), [7][8][9] sensors, [10][11][12] and dyesensitised solar cells (DSSCs). [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] For these applications, heavy metal complexes based on Ru(II), [28][29][30][31][32] Ir(III), [33][34][35][36][37] and Pt(II) [37][38][39][40][41][42] have been the focus of research due to their high emission quantum yields, short emission decay times, photo-stability, and/or tuneable emission wavelengths through intelligent ligand design.…”

C^C* cyclometalated platinum(ii) N-heterocyclic carbene complexes with a sterically demanding β-diketonato ligand – synthesis, characterization and photophysical properties

“…Especially those with the general structure [Pt(C^N)(O^O)] (O^O = β-diketonato) turned out to be a stable and strongly phosphorescent class of emitter molecules. They allow to cover a broad range of the visual spectrum by variation of the C^N cyclometalating ligands and β-diketonato ancillary ligands [39][40][41][42][43][44][45][46][47][48][49][50][51][52] Low-energy emissions are also accessible from dimeric or oligomeric complex species. As a consequence of their planar structure, cyclometalated platinum(II) complexes often show molecular stacking by Pt-Pt bonds and π-π interactions, which promotes the formation of broad emission bands at higher wavelengths when compared to the monomer emissions.…”