Building Block Dependent Morphology Modulation of Cage Nanoparticles and Recognition of Nitroaromatics
作者:Koushik Acharyya、Aniket Chowdhury、Bijnaneswar Mondal、Shubhadip Chakraborty、Partha Sarathi Mukherjee
DOI:10.1002/chem.201700885
日期:2017.6.22
formation of [3+2] assembled architectures. Though the cages are isostructural, structural variation in the aldehyde building blocks imparted by the incorporation of phenyl moieties into the triphenylamine core produces morphologically diverse cage particles, as indicated by SEM. The synthesized cages were found to be fluorescent; the reduced analogue of cage A3X2 (A3X2r) was tested to explore its use as a
纳米材料的形态对它们的化学/物理性质有很大的影响,并且具有期望的形态的这种材料的受控合成是主要的挑战。本文介绍了结构单元在有机笼状颗粒形态中的作用。在这种情况下,三个有机笼(甲3 X 2,乙3 X 2,和c ^ 3 X 2)是从三苯胺类二醛设计(甲- C ^)和柔性三胺(X),利用动态亚胺化学方法。所有合成的笼子都通过各种光谱技术进行了表征,这表明[3 + 2]组装结构的形成。尽管笼是同构的,但是通过将苯基部分结合到三苯胺核中所赋予的醛结构单元的结构变化产生了形态多样的笼颗粒,如SEM所示。发现合成的笼子是荧光的。测试了笼子A 3 X 2(A 3 X 2 r)的还原类似物,以探索其作为化学传感器检测硝基芳族炸药的用途。实验结果表明A的高选择性和敏感性在各种测试的硝基芳香族化合物中,苦味酸(PA)的含量为3 X 2 r。荧光猝灭的理论研究表明,通过共振能量转移(RET)过程形成基态电荷转移络