A current thrust of our research has focused on correlating the photophysical and electrochemical properties of unsaturated organic and main group radicals to the structure of various singlet carbenes which we use to stabilize the paramagnetic species. Through our studies we have found that the redox potentials of these species can be tuned by up to 1 V, by varying the carbene from the π-acidic diamidocarbenes (DAC) to the strongly σ-donating <i>N</i>-heterocyclic imidazol-2-ylidenes (NHCs). More recently, we been exploring the potential of using stable carbenes to tailor the photophysical properties of the organic and main group radicals. This presentation will discuss our efforts to prepare emissive radicals derived from singlet carbenes whereby the emission wavelength and the stability of the radical can be readily tailored by judicious choice of the carbene employed.

Doublet emitters derived from singlet carbenes as potential OLED materials

256th National Meeting (2018)

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