Category: pyridine-derivativesIn 2020 ,《The Covalent and Coordination Co-Driven Assembly of Supramolecular Octahedral Cages with Controllable Degree of Distortion》 appeared in Journal of the American Chemical Society. The author of the article were Bao, Shu-Jin; Xu, Ze-Ming; Ju, Yun; Song, Ying-Lin; Wang, Heng; Niu, Zheng; Li, Xiaopeng; Braunstein, Pierre; Lang, Jian-Ping. The article conveys some information:
Discovering and constructing novel and fancy structures is the goal of many supramol. chemists. In this work, authors propose an assembly strategy based on the synergistic effect of coordination and covalent interactions to construct a set of octahedral supramol. cages and adjust their degree of distortion. Their strategy innovatively utilizes the addition of sulfur atoms of a metal sulfide synthon, [Et4N][Tp*WS3] (A), to an alkynyl group of a pyridine-containing linker, resulting in a novel vertex with low symmetry, and of Cu(I) ions. By adjusting the length of the linker and the position of the reactive alkynyl group, the control of the deformation degree of the octahedral cages can be realized. These supramol. cages exhibit enhanced third-order nonlinear optical (NLO) responses. The results offer a powerful strategy to construct novel distorted cage structures as well as control the degree of distortion of supramol. geometries. In the experiment, the researchers used 4-Ethynylpyridine(cas: 2510-22-7Category: pyridine-derivatives)
4-Ethynylpyridine(cas: 2510-22-7) belongs to pyridine. The basicity and metallophilic high donor number of these π-deficient systems has long favored them as ligands in metal catalysis. The last decade saw pyridine assume a stronger role as functional group for directed C–H oxidation/activation.Category: pyridine-derivatives