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Two Organic–Inorganic Manganese(II) Halide Hybrids Showing Compelling Photo- and Mechanoluminescence as well as Rewritable Anticounterfeiting Printing
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2023-03-30 , DOI: 10.1021/acs.inorgchem.3c00422 Qi Yang 1 , Meng-Qing Yu 1 , Zi-Ang Su 1 , Zhen Pei 1 , Dengfeng Peng 2 , Guo Peng 1 , Xiao-Ming Ren 1
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2023-03-30 , DOI: 10.1021/acs.inorgchem.3c00422 Qi Yang 1 , Meng-Qing Yu 1 , Zi-Ang Su 1 , Zhen Pei 1 , Dengfeng Peng 2 , Guo Peng 1 , Xiao-Ming Ren 1
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Two organic–inorganic manganese(II) halide hybrids (OIMHs) with formulas of [(TEA)(TMA)]MnCl4 (1) and [(TPA)(TMA)3](MnCl4)2 (2) (TEA = tetraethylammonium, TMA = tetramethylammonium, and TPA = tetrapropylammonium) were synthesized by a mixed-ligand strategy. Both compounds crystallize in the acentric space group and are composed of isolated [MnCl4]2– tetrahedral units separated by two types of organic cations. They show high thermal stability and emit strong green light with different emission bandwidths, quantum yields, and high-temperature photostability. Remarkably, the quantum yield of 1 can reach up to 99%. Due to the high thermal stability and quantum yield of 1 and 2, green light-emitting diodes (LEDs) were fabricated. Furthermore, mechanoluminescence (ML) was observed in 1 and 2 when stress was applied. The ML spectrum of 1 is similar to the photoluminescence (PL) spectrum, suggesting ML and PL emissions come from the same transition of Mn(II) ions. Finally, rewritable anticounterfeiting printing and information storage were achieved by utilizing the outstanding photophysical properties and ionic features of the products. The printed images still remain clear after several cycles, and the information stored on the paper can be read out by a UV lamp and commercial mobile phones.
中文翻译：
两种有机-无机锰 (II) 卤化物杂化物表现出引人注目的光致发光和机械致发光以及可重写防伪印刷
两种有机-无机锰 (II) 卤化物杂化物 (OIMH)，分子式为 [(TEA)(TMA)]MnCl 4 ( 1 ) 和 [(TPA)(TMA) 3 ](MnCl 4 ) 2 ( 2 ) (TEA =四乙基铵、TMA = 四甲基铵和 TPA = 四丙基铵）是通过混合配体策略合成的。这两种化合物都在非中心空间群中结晶，并且由被两种类型的有机阳离子分隔开的孤立的 [MnCl 4 ] 2–四面体单元组成。它们显示出高热稳定性，并发出具有不同发射带宽、量子产率和高温光稳定性的强绿光。值得注意的是，量子产率为1可达99%。由于1和2的高热稳定性和量子产率，制造了绿色发光二极管 (LED)。此外，当施加应力时，在1和2中观察到机械发光 (ML) 。1的 ML 光谱类似于光致发光 (PL) 光谱，表明 ML 和 PL 发射来自 Mn(II) 离子的相同跃迁。最后，利用产品出色的光物理特性和离子特性，实现了可重写防伪打印和信息存储。打印出来的图像经过数次循环后依然清晰，纸上存储的信息可以通过紫外灯和商用手机读取出来。
更新日期：2023-03-30
中文翻译：
两种有机-无机锰 (II) 卤化物杂化物表现出引人注目的光致发光和机械致发光以及可重写防伪印刷
两种有机-无机锰 (II) 卤化物杂化物 (OIMH)，分子式为 [(TEA)(TMA)]MnCl 4 ( 1 ) 和 [(TPA)(TMA) 3 ](MnCl 4 ) 2 ( 2 ) (TEA =四乙基铵、TMA = 四甲基铵和 TPA = 四丙基铵）是通过混合配体策略合成的。这两种化合物都在非中心空间群中结晶，并且由被两种类型的有机阳离子分隔开的孤立的 [MnCl 4 ] 2–四面体单元组成。它们显示出高热稳定性，并发出具有不同发射带宽、量子产率和高温光稳定性的强绿光。值得注意的是，量子产率为1可达99%。由于1和2的高热稳定性和量子产率，制造了绿色发光二极管 (LED)。此外，当施加应力时，在1和2中观察到机械发光 (ML) 。1的 ML 光谱类似于光致发光 (PL) 光谱，表明 ML 和 PL 发射来自 Mn(II) 离子的相同跃迁。最后，利用产品出色的光物理特性和离子特性，实现了可重写防伪打印和信息存储。打印出来的图像经过数次循环后依然清晰，纸上存储的信息可以通过紫外灯和商用手机读取出来。
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