1,4-双(1,2,4-三唑-4-基)苯:光诱导电荷分离产生热/空气稳定固态自由基  

1,4-Bis(1,2,4-Triazol-4-yl)Benzene(BTB):Photoinduced Charge Separation and Heat/Air-Stable Radical in the Solid State

作　　者：张亚楠 张宁宁 曲孔岗 张宪玺[1] ZHANG Yanan;ZHANG Ningning;QU Konggang;ZHANG Xianxi(School of Chemistry and Chemical Engineering,Liaocheng University,Liaocheng 252059,China)

机构地区：[1]聊城大学化学化工学院,山东聊城252059

出　　处：《聊城大学学报（自然科学版）》2021年第6期64-69,共6页Journal of Liaocheng University:Natural Science Edition

基　　金：结构化学国家重点实验室开放基金项目(20210009);山东省高校青年创新团队建设基金项目(2019KJC031)。

摘　　要：光诱导电荷分离与稳定自由基的形成在许多领域起着关键作用。本研究合成了一例非极性三唑基有机小分子,1,4-双(1,2,4-三唑-4-基)苯(BTB),该有机小分子可以在固态下、室温空气中进行光诱导电荷分离,并产生对热、空气稳定的自由基。通过实验和理论计算方法对光诱导电荷分离产生的自由基进行了表征。研究表明,生成的自由基能在空气中长期存在(如1年),在高温220℃下也可以稳定存在。在未来,BTB及其类似物有可能在光开关、光致变色、能量转换和光催化等方面有广阔的应用前景。Photoinduced charge separation with the formation of stable radicals plays a pivotal role in many areas.In this work,we synthesized a nonpolar triazole-based organic small molecule,1,4-bis(1,2,4-triazol-4-yl)benzene(BTB),which could undergo photoinduced charge separation and generate stable radical in air in the solid state.The photogenerated radical was characterized through experimental and theoretical methods.The yielded radical could persist in the air for a long time(e.g.1 year)and at high temperature(e.g.220℃)in the solid state.In the future,BTB and its analogs may be applied in several potential applications such as photoswitching,photochromism,energy conversion,and photocatalysis.

关 键 词：功能基元 热/空气稳定 光诱导电荷分离 自由基 三氮唑 

分 类 号：O625[理学—有机化学]