Stable Luminescent Diradicals: The Emergence and Potential Applications

Stable luminescent diradicals, characterized by the presence of two unpaired electrons, exhibit unique photophysical properties that are sensitive to external stimuli such as temperature, magnetic fields, and microwaves. This sensitivity allows the manipulation of their spin states and luminescence, setting them apart from traditional closed-shell luminescent molecules and luminescent monoradicals. As a result, luminescent diradicals are emerging as promising candidates for a variety of applications. This minireview discusses recent advances in the design and synthesis of luminescent diradicals, explores their photophysical properties and potential applications. It also examines the challenges and prospects in the development of these materials, shedding light on their potential to drive technological innovation.