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High quantum yield pure blue emission and fast proton conduction from an indium–metal–organic framework†
Dalton Transactions ( IF 3.5 ) Pub Date : 2019-07-20 00:00:00 , DOI: 10.1039/c9dt02472g Lu Zhai 1, 2, 3, 4, 5 , Jing-Wei Yu 1, 2, 3, 4, 5 , Jin Zhang 1, 2, 3, 4, 5 , Wen-Wei Zhang 5, 6, 7, 8, 9 , Lifeng Wang 10, 11, 12, 13 , Xiao-Ming Ren 1, 2, 3, 4, 5
Dalton Transactions ( IF 3.5 ) Pub Date : 2019-07-20 00:00:00 , DOI: 10.1039/c9dt02472g Lu Zhai 1, 2, 3, 4, 5 , Jing-Wei Yu 1, 2, 3, 4, 5 , Jin Zhang 1, 2, 3, 4, 5 , Wen-Wei Zhang 5, 6, 7, 8, 9 , Lifeng Wang 10, 11, 12, 13 , Xiao-Ming Ren 1, 2, 3, 4, 5
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A multifunctional material, with two or more types of functionalities in a single material, might give new phenomena and novel applications. Metal–organic frameworks (MOFs) or porous coordination polymers (PCPs) can be utilized as a highly versatile and tunable platform for exploring multifunctional materials. In this study, an extra thermally stable indium–MOF (1) was synthesized via self-assembly of 1,1′-ethynebenzene-3,3′,5,5′-tetracarboxylic acid (H4EBTC) with an indium salt under solvothermal conditions. MOF 1 crystallizes in a tetragonal space group P4/mmm and shows a three-dimensional (3D) anionic framework with one-dimensional (1D) channels along the c-axis direction, and charge-balancing [(CH3)2NH2]+ cations together with lattice DMF and water molecules are accommodated in channels. This multifunctional MOF emits pure blue luminescence under ambient conditions, arising from the π* → π electron transition in EBTC4−, with CIE coordinates of (0.16, 0.07), and shows the highest quantum yield of 61.4% among indium–MOFs. Alternatively, 1 features fast proton conductivity with σ = 3.49 × 10−3 S cm−1 at 25 °C and 99% RH, attributed to the efficiently synergistic proton transfer in the H-bond networks constructed by [NH2(CH3)2]+ cations, lattice water molecules in channels and carboxylate groups in the framework. The notable level of performance of 1, combined with good hydrolytic and extra thermal stability, offers great opportunities for its future applications, and it may behave as a kind of promising multifunctional MOF material.
中文翻译：
铟-金属-有机骨架的高量子产率纯蓝色发射和快速质子传导†
在一种材料中具有两种或多种功能的多功能材料可能会带来新的现象和新颖的应用。金属-有机骨架（MOF）或多孔配位聚合物（PCP）可以用作探索多功能材料的高度通用且可调的平台。在这项研究中，通过在铟盐下自组装1,1'-乙炔-3,3'，5,5'-四羧酸（H 4 EBTC）合成了一种额外的热稳定铟-MOF （1）溶剂热条件。MOF 1在四边形空间群P 4 / mmm中结晶，并显示出沿着c轴具有一维（1D）通道的三维（3D）阴离子骨架。轴方向和电荷平衡[（CH 3）2 NH 2 ] +阳离子与晶格DMF和水分子一起容纳在通道中。这种多功能的MOF在环境条件下发出纯蓝色发光，这是由EBTC 4−中的π*→π电子跃迁引起的，CIE坐标为（0.16，0.07 ），在铟MOF中显示最高的量子产率为61.4％。或者，1具有在25°C和99％RH时σ = 3.49×10 -3 S cm -1的快速质子电导率，这归因于[NH 2（CH3） 2 ] +阳离子，通道中的晶格水分子和骨架中的羧酸根基团。的性能值得注意水平1，具有良好的水解和额外的热稳定性，对于其未来的应用提供了巨大的机遇相结合，它可以表现为一种有前途的多功能MOF材料。
更新日期：2019-07-20
中文翻译：
铟-金属-有机骨架的高量子产率纯蓝色发射和快速质子传导†
在一种材料中具有两种或多种功能的多功能材料可能会带来新的现象和新颖的应用。金属-有机骨架（MOF）或多孔配位聚合物（PCP）可以用作探索多功能材料的高度通用且可调的平台。在这项研究中，通过在铟盐下自组装1,1'-乙炔-3,3'，5,5'-四羧酸（H 4 EBTC）合成了一种额外的热稳定铟-MOF （1）溶剂热条件。MOF 1在四边形空间群P 4 / mmm中结晶，并显示出沿着c轴具有一维（1D）通道的三维（3D）阴离子骨架。轴方向和电荷平衡[（CH 3）2 NH 2 ] +阳离子与晶格DMF和水分子一起容纳在通道中。这种多功能的MOF在环境条件下发出纯蓝色发光，这是由EBTC 4−中的π*→π电子跃迁引起的，CIE坐标为（0.16，0.07 ），在铟MOF中显示最高的量子产率为61.4％。或者，1具有在25°C和99％RH时σ = 3.49×10 -3 S cm -1的快速质子电导率，这归因于[NH 2（CH3） 2 ] +阳离子，通道中的晶格水分子和骨架中的羧酸根基团。的性能值得注意水平1，具有良好的水解和额外的热稳定性，对于其未来的应用提供了巨大的机遇相结合，它可以表现为一种有前途的多功能MOF材料。
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