Carbonell Esther, Bivona Lucia A, Fusaro Luca, Aprile Carmela
Unit of Nanomaterial Chemistry (CNano), Department of Chemistry, University of Namur , Rue de Bruxelles 61, 5000 Namur, Belgium.
Inorg Chem. 2017 Jun 5;56(11):6393-6403. doi: 10.1021/acs.inorgchem.7b00471. Epub 2017 May 24.
Novel polyhedral oligomeric silsesquioxanes (POSS) decorated with eight terpyridine moieties were synthesized in a one-pot procedure via Heck coupling reaction with the aim of investigating the possible formation of three-dimensional extended supramolecular organizations. The monosubstituted analogue was also prepared and used as a model compound. Both POSS-based nanostructures were extensively characterized via H, C, and Si nuclear magnetic resonance (NMR), ultraviolet-visible spectroscopies and combustion chemical analysis. The assembly of these nanocaged bricks and two different metal ions (Zn and Fe) was investigated via H NMR as well as absorption and emission spectroscopy. Both mono- and octa-terpyridine-functionalized POSS (O-POSS) displayed interesting photophysical properties. Moreover, under selected conditions, the O-POSS forms stable gels at room temperature and can easily be shaped in the form of a film with potential applications in nanotechnology.
通过Heck偶联反应，采用一锅法合成了带有八个三联吡啶部分的新型多面体低聚倍半硅氧烷（POSS），旨在研究三维扩展超分子组织的可能形成。还制备了单取代类似物并用作模型化合物。通过氢、碳和硅核磁共振（NMR）、紫外可见光谱和燃烧化学分析对两种基于POSS的纳米结构进行了广泛表征。通过氢核磁共振以及吸收和发射光谱研究了这些纳米笼状砖块与两种不同金属离子（锌和铁）的组装。单官能化和八官能化三联吡啶的POSS（O-POSS）均表现出有趣的光物理性质。此外，在选定条件下，O-POSS在室温下形成稳定的凝胶，并且可以很容易地成型为薄膜，在纳米技术中具有潜在应用。
