| 2-甲基-2,5′-(乙烯基)-二-8-羟基喹啉锌配合物的合成与荧光特性 |
| Synthesis and Fluorescence Properties of 2-Methyl-2,5′-(ethylene)-bis-8-hydroxyquinoline and Its Zinc Complexes |
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| 摘要: 设计合成了8-羟基喹啉衍生物3和4以及它们的金属锌配合物5和6，化合物3和4经质谱(MS)、元素分析(EA)、红外光谱(IR)、紫外光谱(UV)、核磁共振氢谱( 1H NMR)进行表征，并测定了它们的荧光性质，与2-甲基-8-羟基喹啉(λmax=390 nm)比较表明，化合物3和4的荧光红移80～150 nm；用X射线单晶衍射仪测定了化合物3的晶体结构，晶体属于三斜晶系，空间群P1，a=0.706 87(5) nm，b=0.962 03(6) nm，c=1.221 09(8) nm，α=86.735(4)°，β=87.840(4)°，γ=74.333(4)°，V=0.798 01(9) nm3，Z=2，Dc=1.367 Mg·m-3，μ=0.089 mm-1，F(000)=344，wR1=0.055 2，wR2=0.158 1。化合物3的晶体结构确认了2-甲基-8-羟基喹啉甲酰化是在5位。测定了化合物5和6的荧光光谱及其荧光寿命，结果表明，化合物5和6发光的峰值为620 nm 和623nm，能够发出橙色的荧光，与2-甲基-8-羟基喹啉锌(λmax=515 nm)比较，发生了明显的红移。化合物5和6的寿命分别为1.57 ns和1.77 ns,呈单指数衰减。 |
| 关键词: 2-甲基-2,5′-(乙烯基)-二-8-羟基喹啉 锌配合物 荧光光谱 |
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| Abstract: 8-Hydroxyquinoline Derivatives 3 and 4 and their zinc complexes 5 and 6 have been synthesized. Compounds 3 and 4 have been identified by UV-Vis, 1H NMR, FTIR, MS spectroscopy and elemental analyses. Their fluorescence spectra show that luminescence wavelengths of compounds 3 and 4 exhibit red-shift of 80～150 nm compared with 2-methyl-8-hydroxyquinoline(λmax=390 nm). Compound 3 crystallizes in the triclinic space group P1 with unit cell parameters of a=0.706 87(5) nm, b=0.962 03(6) nm, c=1.221 09(8) nm, α=86.735(4)°, β=87.840(4)°, γ=74.333(4)°, V=0.798 01(9) nm3, Z=2, Dc=1.367 Mg·m-3, μ=0.089 mm-1, F(000)=344, wR1=0.055 2, wR2=0.158 1. The result shows the substitution is at the 5-position of 2-methyl-8-hydroxyquinoline. Meanwhile, from the fluorescence spectra of compounds 5 and 6, one can see that compounds 5 and 6 can emit orange with the emission peaks at 620 nm and 623 nm, respectively. Luminescence wavelengths of compounds 5 and 6 exhibit red-shift compared with 2-methyl-8-hydroxyquinoline zinc(λmax=515 nm). Compounds 5 and 6 exhibit single exponential decay with the lifetimes of 1.57 ns and 1.77 ns, respectively. CCDC： 670237,3. |
| Keywords: 2-methyl-2,5′-(ethylene)-bis-8-hydroxyquinoline zinc complexes fluorescence spectroscopy |
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| 张培全,曾和平.2-甲基-2,5′-(乙烯基)-二-8-羟基喹啉锌配合物的合成与荧光特性[J].无机化学学报,2008,24(1):124-129. |
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