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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Dual emissions and thermochromic luminescences of isomorphic chiral twofold interpenetrated 3-D nets built from (IO2)-O-1 type hybrid inorganic-organic frameworks of [NH2(CH3)(2)](3)[Pb2X3(BDC)(2)] (X = Br, I)
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Dual emissions and thermochromic luminescences of isomorphic chiral twofold interpenetrated 3-D nets built from (IO2)-O-1 type hybrid inorganic-organic frameworks of [NH2(CH3)(2)](3)[Pb2X3(BDC)(2)] (X = Br, I)

机译：由（IO2）-O-1型混合无机无机 - 有机骨架 - [NH 2（CH3）]（3）[PB2X3（BDC）（2）（2）（2）（2）（2）（2）（2）（2）（2）（2）（2）（2））（IO2）-1-1型杂交无机 - 有机骨架 - 杂交无机 - 有机骨架（3）（2） ]（x = Br，i）

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摘要

Two pairs of MOF-based hybrid enantiomorphs, [NH2(CH3)(2)](3)[Pb2X3(BDC)(2)] (H2BDC = 1,4-benzenedicarboxylic acid, X = Br or I), have been synthesized using the solvothermal reaction and then manually separated, which are labeled as 1a/1b (X = Br) and 2a/2b (X = I). The isomorphic 1a and 2a crystallize in tetragonal space group P4(3)2(1)2, and the isomorphic 1b and 2b in the enantiomorphic space group P4(1)2(1)2. Twofold interpenetrated three-dimensional (3-D) networks were built from two sets of equivalent (IO2)-O-1 type hybrid inorganic-organic frameworks in 1a/1b and 2a/2b. Each (IO2)-O-1 type hybrid inorganic-organic framework constructs by the inorganic pentagonal bipyramid-shape PbX3O4 (X = Br or I) polyhedral chains along the c-axis, which are further connected though bridged BDC2- ligands in the directions perpendicular to the c-axis. Hybrids 1a/1b and 2a/2b have been characterized by elemental analysis (C, H and N elements), thermogravimetric and powder X-ray diffraction techniques, and UV-visible absorption spectroscopy in the solid state. These hybrids show dual emissions at ambient conditions, which arise from the -* electron transition within the aromatic rings in the BDC2- ligands and the electron transition in the inorganic polyhedral semiconducting chains, as well as thermochromic luminescence behavior from 10 to 300 K owing to two emission bands displaying different responses to the temperature change.
机译：已经合成了两对[NH 2（CH3）（2）]（3）[PB2X3（BDC）（2）]（H2BDC = 1,4-苯并二羧酸，X = Br或I），已经合成使用溶剂热反应然后手动分离，标记为1A / 1B（X = BR）和2A / 2B（X = I）。在对映形立体空间组p4（1）2（1）2中的细胞形式基团P4（3）2（1）2和2B中，在四边形空间组P4（3）2（1）2中结晶。双重互连的三维（3-D）网络由两组等效（IO2）-1-1型混合动力机无机 - 有机骨架内建造1A / 1B和2A / 2B。每个（IO2）-O-1型混合无机 - 有机框架由无机五角形双氮杂胺形PBX3O4（X = Br或I）沿C轴的多面体链构建，其在方向上进一步连接到桥接Bdc2-配体的桥接垂直于C轴。杂交物1A / 1B和2A / 2B的特征在于通过元素分析（C，H和N个元素），热量分析和粉末X射线衍射技术和固态中的UV可见吸收光谱。这些杂种在环境条件下显示双发射，其从BDC2-配体中的芳环内的 - *电子转变产生和无机多面体半导体链中的电子转变，以及从10至300 k的热致变色发光行为两个发射带对温度变化显示不同的响应。

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    Liu Shao-Xian; Yuan Guo-Jun; Zhai Lu; Wang Lifeng; Luo Hong-Bin; Ren Xiao-Ming;

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    Nanjing Tech Univ State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Xiaozhuang Univ Sch Environm Sci Nanjing 211171 Jiangsu Peoples R China;

    Nanjing Tech Univ State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China;

    Deakin Univ IFM 75 Pigdons Rd Waurn Ponds Vic 3216 Australia;

    Nanjing Tech Univ State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China;

    Nanjing Tech Univ State Key Lab Mat Oriented Chem Engn Nanjing 210009 Jiangsu Peoples R China;

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  • 中图分类 化学;无机化学;
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