Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels. 7598-35-8, Name is 2-Bromopyridin-4-amine, molecular formula is C5H5BrN2. In an article, author is Tang, Xianhui,once mentioned of 7598-35-8, Formula: C5H5BrN2.
Metal-Organic Cages with Missing Linker Defects
We present here the controlled synthesis of defective coordination cages by employing steric hindrance of organic linkers to manipulate coordination modes of the assembled metal ions. Three chiral 1,1 ‘-bi-2-naphthol (BINOL) derived bis-tridentate ligands L-1-L-3 with pyridine-2,6-dicarboxamides (pcam) chelating moieties are therefore designed and synthesized, among which L-3 has a smaller steric hindrance on the coordinating sites relative to the other two linkers. Complexes of L-1 and L-2 with lanthanides afford the irregular Ln(8)(L-1)(10) hexahedra with two missing edges and Ln(4)(L-2)(5) tetrahedra with one missing edge, respectively, both of which contain a 1:1 mixture of Ln(pcam)(2) and Ln(pcam)(3). In contrast, complex of L-3 produces the regular twisted Ln(6)(L-3)(9) trigonal prisms without missing edges that contain only Ln(pcam)(3) vertices. The defective cage has more freedom to adjust its structural conformation, affording adaptable cavity to accommodate a range of guest molecules with sizes comparable or much larger than the cavity portals.
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Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem