两个基于多金属氧酸盐和冠醚基超分子阳离子的有机无机杂化材料的合成及晶体结构（英文）

发布时间：2018-05-01 05:17

本文选题：有机无机杂化物 + 超分子自组装　；参考：《无机化学学报》2017年09期

【摘要】：以二苯并18-冠-6,3-氟-4-甲基苯铵盐以及多金属氧酸盐[Mo6O19]2-为原料,使用溶剂挥发法合成了有机无机杂化材料[(3-F-4-Me Anis)(DB[18]crown-6)]2[Mo6O19]·2CH3CN(1)(3-F-4-Me Anis=3-氟-4-甲基苯铵盐;DB[18]crown-6=二苯并18-冠-6);以18-冠-6,2-氟-4-甲基苯铵盐以及多金属氧酸盐[SMo12O40]2-为原料,运用H管扩散法制备了晶体材料[(2-F-4-Me Anis)([18]crown-6)]2[SMo12O40]·2CH3CN(2)(2-F-4-Me Anis=2-氟-4-甲基苯铵盐;[18]crown-6=18-冠-6)。通过红外光谱、元素分析、热重分析和X射线单晶结构分析对化合物进行了表征。结构分析表明,晶体1和2通过非共价键自组装作用构建而成,冠醚基超分子阳离子是通过N-H…O氢键作用形成。在晶体1和2中,超分子阳离子和多酸阴离子交错堆积形成包合物结构,沿着a轴方向观察,发现每个多酸阴离子被6个超分子阳离子包围着形成六边形堆积结构。通过晶体结构研究和热重分析表明,二苯并18-冠-6中的苯环在维持晶体1的稳定性方面具有重要的作用。
[Abstract]:Dibenzo 18-crown 3-fluoro-4-methyl benzene ammonium salt and polyoxometalate [Mo6O19] 2- were used as raw materials, The organic-inorganic hybrid materials [3-F-4-me Anis)(DB [18] crown-6] 2 [Mo6O19] 2CH3CN(1)(3-F-4-Me Anis-3-fluoro-4-methylbenzene-ammonium salt [DB18] crown-6 = dibenzo-18-crown-6n were synthesized by solvent volatilization method, using 18-crown-6- fluoro-4-methylammonium salt and polyoxometalate [SMo12O40] 2- as raw materials. The crystal materials [2-F-4-Me Anisan ([18] crown-6)] 2 [SMo12O40] 2CH3CN(2)(2-F-4-Me Anis-2-fluoro-4-methylbenzene ammonium salt and [18] crown-6Crown-6 have been prepared by H tube diffusion method. The compounds were characterized by IR, elemental analysis, thermogravimetric analysis and X-ray single crystal structure analysis. Structural analysis shows that crystals 1 and 2 are constructed by noncovalent self-assembly, and crown ether-based supramolecular cations are constructed by N-H. O hydrogen bond is formed. In crystals 1 and 2, supermolecular cations and polyacid anions interlaced to form inclusion structures. Observed along the a-axis, it was found that each polyacid anions were surrounded by six supramolecular cations to form hexagonal stacking structures. The crystal structure and thermogravimetric analysis show that the benzene ring in dibenzo 18-crown-6 plays an important role in maintaining the stability of crystal 1.
【作者单位】：武汉纺织大学化学与化工学院;黄冈师范学院化工学院;
【基金】：the foundation of Wuhan Textile University (Grant No.165002)~~
【分类号】：O641.3

【相似文献】