We present the synthesis and characterization of cyclometalated C^C* platinum(II) complexes with unique photophysical properties. They show aggregation induced enhancement of the quantum yields with simultaneous decrease of phosphorescence lifetimes. Additionally, a change of emission color is induced by variation of the excitation wavelength. The aggregation behaviour of these complexes is controlled by the steric demand of the substituents. The photophysical properties of these complexes are investigated via emission-excitation matrix analysis (EEM). The monomeric complexes are excellent room temperature phosphorescent blue emitters with emission maxima below 470nm and quantum yields of up to 93%.

Chameleonic nature of platinum(II) imidazopyridine complexes

255th National Meeting (2018)

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