Mode-Selective C═C and C─N Vibrational Coupling Modulates Nonradiative Decay in Regioisomeric Organic Phosphorescent Emission.
Structural isomerization has emerged as an effective strategy for improving the performance of organic room-temperature phosphorescent materials, but reported explanations are mainly attributed to differences in molecular packing, spin-orbit coupling, excited-state electronic configurations, etc. The intrinsic vibratio...