Fig. 5: Molecular optical properties of R-(BN)₂ in viscous and rigid media. | Communications Chemistry

Fig. 5: Molecular optical properties of R-(BN)₂ in viscous and rigid media.

From: Axial chirality-induced rigidification in aminoboranes enhances persistent room-temperature phosphorescence and circularly polarized luminescence

Fig. 5: Molecular optical properties of R-(BN)₂ in viscous and rigid media.

a Fluorescence spectra in hexane, paraffin, and a hexane/paraffin mixture (1:1) (concentration = 10 μM). b Absorbance spectrum (in cyclohexane solution) and excitation spectrum (1 wt% in PMMA), monitored at λem = 530 nm. Prompt and delayed emission spectra (1 wt% in PMMA matrix) under vacuum conditions (c) at 298 K and (d) at 77 K. e Delayed emission spectra (1 wt% in PMMA matrix) under different environments. f Time-resolved decay kinetic profiles measured at 530 nm under vacuum and N₂ atmospheres (delay = 50 µs, λex = 280 nm).

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