Fig. 3: Proportional fluorescence response and structural transition of dyanCOF-330 upon docking and adaptive inclusion of acetone vapour.
From: Guest-adaptive molecular sensing in a dynamic 3D covalent organic framework
a Optical images of dynaCOF-330 under 365-nm UV lights showing the fluorescence turn-on and colour change for representative equilibrium pressures and uptakes of acetone vapour at 298 K. b Quantitative in-situ fluorescence spectroscopy of dynaCOF-330 showing maxima redshift of emission wavelength. c Correlation of fluorescence emission intensity with acetone vapour uptake with an inset for the steady acetone vapour sensing through adaptive inclusion. d Lattice parameters refined from ex-situ PXRD of dynaCOF-330 at representative equilibrium pressures of acetone vapour. e Evolution of crystal structures of dynaCOF-330 upon docking and adaptive inclusion of various numbers of acetone molecules per cell. (Colour codes: C, black and grey; N, blue; O, red; H, white. Connolly pore surfaces are shown in grey and yellow.).
