Fig. 2: Vapochromic response of T1 to water uptake and release.
From: Dehydration of a crystal hydrate at subglacial temperatures
a, Micrograph of a single crystal (130 × 100 × 100 µm3) of T1-Y. b, Corey–Pauling–Koltun (CPK) model of a channel in T1-Y viewed along [00\(\bar{1}\)]. c, Micrograph of the crystal after hydration. d–h, Adsorption of water by T1 at 25 °C: two consecutive DVS isotherms (red and blue) for water uptake below (d), at (e) and above (f) 55% RH. Water-induced tautomerism between the enolimine (g) and the ketoenamine (h) forms. i, CPK model of a channel in T1-R viewed along [00\(\bar{1}\)].
