Like NBD, NR is also used as a fluorescence emitter 119,120,135-137 and its spectral properties are sensitive to the environment. The experimental absorption lineshape is broader than the fluorescence lineshape, with FWHM values of 0.365 eV and 0.252 eV, respectively. 123 Unlike NBD, there are no hydrogen From the AIMD simulations, we obtained one hundred uncorrelated snapshots on both the ground and excited state potentials and computed the VEEs and VDEs. For distributions of VEEs and VDEs of NR in the explicit solvent and the solvent contribution of chromophore-only configurations, please refer to figures S10 and S11, respectively.