A Ferroelastic Salt Cocrystal with Ultraviolet Emission

IF 4.3 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Pub Date : 2024-11-27 DOI:10.1021/acs.inorgchem.4c04355

Xin Yan, Lin Zhou, Wen-Li Yang, Yan-Juan Wang, Xin Deng, Yan Qin, Yuan-Yuan Tang

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Abstract

The coexistence and coupling of photoluminescence and ferroelasticity in a single matter are vitally important for developing multifunctional materials and devices. However, the effective construction of ferroelastics with efficient photoluminescence, especially in the ultraviolet range, is a great challenge. In this work, a salt cocrystal, (DPA)(DPAH)PF₆ (DPA = diphenylamine, DPAH = diphenylamine cation), with ultraviolet emission and ferroelasticity was reported by introducing the anion group PF₆^– in the parent DPA crystal. Besides, the thermally triggered order–disorder transition of PF₆^– groups leads to a ferroelastic phase transition at ∼340 K with the Aizu notation of 2/mF1̅. In addition, (DPA)(DPAH)PF₆ displays a bright ultraviolet emission at 392 nm with a photoluminescence quantum yield of 49.4%. This work presents a strategy to achieve ultraviolet (UV)-emissive ferroelastic based on the luminescent organic crystal, which not only extends the luminescence of ferroelastic to the UV region but also paves a new way for the development of multifunctional ferroelastic materials and devices.

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能发射紫外线的铁弹性盐共晶

光致发光和铁弹性在单一物质中的共存和耦合对于开发多功能材料和设备至关重要。然而，如何有效地构建具有高效光致发光（尤其是在紫外线范围内）的铁氧体塑料是一项巨大的挑战。在这项工作中，通过在母体 DPA 晶体中引入阴离子基团 PF6-，报告了一种具有紫外发射和铁弹性的盐共晶体 (DPA)(DPAH)PF6（DPA = 二苯胺，DPAH = 二苯胺阳离子）。此外，PF6-基团的热触发有序-无序转变导致在 ∼340 K 发生铁弹性相变，会津符号为 2/mF1̅。此外，(DPA)(DPAH)PF6 在 392 纳米波长处显示出明亮的紫外发射，光致发光量子产率为 49.4%。这项研究提出了一种基于发光有机晶体实现紫外辐射铁氧体的策略，不仅将铁氧体的发光范围扩展到了紫外区，而且为多功能铁氧体材料和器件的开发铺平了新的道路。

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来源期刊

Inorganic Chemistry 化学-无机化学与核化学

CiteScore

7.60

自引率

13.00%

发文量

1960

审稿时长

1.9 months

期刊介绍： Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.