抄録
Crystal-crystal phase transformation by external stimuli has attracted significant attention for application in switchable materials, which can change their structures and properties. Herein, it is revealed that N-salicylidene-p-aminobenzoic acid crystals undergo a two-step crystal-crystal phase transformation through a gas-solid reaction with aqua-ammonia vapour. The photochromic behaviour of the crystals switched from nonphotochromic to photochromic and back to nonphotochromic via a phase transformation. The two-step phase transformation and photochromic behaviour change were characterized and correlated by X-ray crystal structure analysis, UV-Vis spectroscopy, differential scanning calorimetry and scanning electron microscopy. This article is the first report to capture the stepwise structural change in the gas-solid (acid-base) reaction of ammonia with benzoic acid derivatives.
本文言語 | English |
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ページ(範囲) | 56-60 |
ページ数 | 5 |
ジャーナル | Acta crystallographica. Section C, Structural chemistry |
巻 | 77 |
DOI | |
出版ステータス | Published - 2021 1月 1 |
ASJC Scopus subject areas
- 凝縮系物理学
- 物理化学および理論化学
- 無機化学
- 材料化学