New CCC-NHC pincer Pt complexes were synthesized by a metalation/transmetalation methodology in an extension of our previously reported work. These Pt complexes are air and water stable and emit light in the blue to green color range when irradiated with long wavelength UV light. The photophysical properties (absorption, emission, lifetime, photostability, and quantum yield) of these new Pt complexes were studied. Most importantly, in air, the photostabilities are up to 98% and quantum yields are up to 78%. Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) computations were used to study the ground- and excited-state structures, energetics, and electronic properties. Molecular structures of the select Pt complexes were determined by X-ray crystallography. Furthermore, these complexes were characterized by 195Pt-, 13C-, and 1H-NMR. With all of these promising characteristics, many future applications are envisioned.

Synthesis, characterization, and photophysics of CCC-NHC pincer Platinum complexes

255th National Meeting (2018)

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