Room Temperature Phase Transition and Luminescence Behavior of a Novel Metal‐Free Ionic Crystal [C7H16NO][ClO4]

Metal‐free ionic crystals have attracted tremendous attention for their environmental friendliness, biocompatibility, easy fabrication and structural variability. Herein, a metal‐free ionic crystal [C7H16NO][ClO4] ([C7H16NO]=1‐methyl‐4‐piperidinemethanol) with a dielectric transition at room tempera...

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Bibliographic Details
Published in:Zeitschrift für anorganische und allgemeine Chemie (1950) 2024-11, Vol.650 (24), p.n/a
Main Authors: Shi, Xian, Hua, Xiu‐Ni, Cai, Zhuoer, Zhang, Yinan, Zhang, Xiang, Huo, Pingxin, Li, Linjing, Qin, Tianshi, Duan, Hai‐Bao
Format: Article
Language:English
Subjects:
Biocompatibility
Crystal structure
Dielectric
Ionic crystals
Luminescence
Metal-free ionic crystal
Optical properties
Phase transition
Phase transitions
Room temperature
Single crystals
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Summary:Metal‐free ionic crystals have attracted tremendous attention for their environmental friendliness, biocompatibility, easy fabrication and structural variability. Herein, a metal‐free ionic crystal [C7H16NO][ClO4] ([C7H16NO]=1‐methyl‐4‐piperidinemethanol) with a dielectric transition at room temperature was designed and constructed. Differential scanning calorimetry (DSC) proved that there exists a reversible phase transition near room temperature at 304 K, accompanied with switchable dielectric behaviors between the low and high dielectric states. The single crystal structure show that the mechanism of such structural phase transition mainly results from the dynamic motion of perchlorate anions. The compound is further shown to exhibit remarkable luminescent properties, characterized by a prolonged lifetime of 18.6 ns. This work offers valuable insights into the construction of room temperature phase‐transition ionic crystals involved with dielectric switching and blue luminescence properties.
ISSN:0044-2313
1521-3749
DOI:10.1002/zaac.202400148