| 基于紫精组分构筑的三种光致变色共晶体 |
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| 引用本文： | 刘进剑,刘娜,陆艺炜,赵国政.基于紫精组分构筑的三种光致变色共晶体[J].无机化学学报,2021,37(5):937-944. |
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| 作者姓名： | 刘进剑 刘娜 陆艺炜 赵国政 |
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| 作者单位： | 山西师范大学现代文理学院, 临汾 041000;山西师范大学化学与材料科学学院, 临汾 041004 |
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| 基金项目： | 山西师范大学现代文理学院基础研究项目（No.2020JCYJ03）、山西省高等学校科技成果转化培育项目（No.2020CG032）和山西师范大学研究生科技创新项目（No.2020XSY029）资助。 |
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| 摘 要： | 在碱性条件下,将1,2,4,5-均苯四甲酸(H4BTEC)与过渡金属离子配位,并引入中性紫精组分1-羧乙基-4,4′-联吡啶(CEbpy),构筑了3个同构共晶体M(H2O)_5(BTEC)0.5]·(CEbpy)(M=Mn(1)、Zn(2)、Co(3))。在紫外灯照射下,3个化合物都发生明显的光致变色现象,这归因于光诱导的电子转移并产生了紫精自由基。同时,在加热的情况下,化合物3还表现出不可逆的失水致变色行为,而化合物1和2则没有。我们讨论了金属离子对变色行为的影响。
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| 关 键 词： | 1-羧乙基-4 4′-联吡啶(CEbpy) 共晶 光致变色 失水致变色 |
| 收稿时间： | 2020/11/25 0:00:00 |
| 修稿时间： | 2021/1/5 0:00:00 |
Three Photochromic Co-crystals Based on Viologen Moiety |
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| LIU Jin-Jian,LIU N,LU Yi-Wei,ZHAO Guo-Zheng.Three Photochromic Co-crystals Based on Viologen Moiety[J].Chinese Journal of Inorganic Chemistry,2021,37(5):937-944. |
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| Authors: | LIU Jin-Jian LIU N LU Yi-Wei ZHAO Guo-Zheng |
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| Institution: | Modern College of Humanities and Science, Shanxi Normal University, Linfen, Shanxi 041000, China;School of Chemistry and Material Science, Shanxi Normal University, Linfen, Shanxi 041004, China |
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| Abstract: | The reactions of 1,2,4,5-benzenetetracarboxylic acid (H4BTEC) with the transition metal ions in the presence of neutral viologen moiety, 1-carboxyethyl-4, 4''-bipyridine (CEbpy), led to three isostructural co-crystalsM(H2O)5(BTEC)0.5]·(CEbpy) (M=Mn (1), Zn (2), Co (3)) in an alkaline environment. Upon UV irradiation, these three compounds exhibited obvious photochromic behaviors owing to the formation of viologen radicals through photo-induced electron transfer. Meanwhile, compound 3 exhibited irreversible hydrochromic behavior upon heating, while compounds 1 and 2 did not. The influence of metal ions on their chromic behaviors has been discussed. |
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| Keywords: | 1-carboxyethyl-4 4''-bipyridine (CEbpy) co-crystals photochromism hydrochromism |
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