Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1.
Dalton Trans. 2015 Sep 7;44(33):14724-31. doi: 10.1039/c5dt02213d.
Prussian blue analogues (PBAs) have been constructed in chiral nematic mesoporous organosilica and silica templates. By functionalizing the surface of the mesoporous hosts with bipyridinium ligands, it was possible to construct PBAs in their interiors through hard templating. The optical properties of the composites were studied and the relationship between the circular dichroism (CD) signals and the UV-Vis absorption spectra was found through mathematical modeling. Efforts to remove the hard templates to give free-standing PBA films with high surface area and pore volume were met with limited success, but it was possible in the case of zinc/iron PBAs to obtain a highly porous PBA sponge that retained the overall morphology of the template. This work demonstrates the potential for hard templating of coordination polymers in mesoporous materials.
普鲁士蓝类似物 (PBAs) 已在手性向列介孔有机硅和硅模板中构建。通过在手性介孔主体的表面功能化联吡啶配体，可以通过硬模板在其内部构建 PBAs。研究了复合材料的光学性质，并通过数学建模发现了圆二色性 (CD) 信号与紫外可见吸收光谱之间的关系。尽管努力去除硬模板以获得具有高表面积和孔体积的独立 PBA 薄膜，但锌/铁 PBAs 是成功的，有可能获得保留模板整体形态的高多孔 PBA 海绵。这项工作证明了在介孔材料中配位聚合物的硬模板的潜力。
