Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 499-40-1, C12H22O11. A document type is Article, introducing its new discovery., category: Tetrahydropyrans
Metal Complexes with 2,2?-Dipyridylamine as Ligand: Crystal Structures of the Complexes with CdX2 (X = Cl, Br, I) and CuCN
Reactions of 2,2?-dipyridylamine (dpyam) with cadmium halides yield crystals of [Cd(dpyam)(H2O)Cl2] (1), [Cd(dpyam)Br2] (2), and [Cd(dpyam)I2] (3). With CuCl2 and KCN a complex [Cu(dpyam)CN]¡¤H2O (4) is obtained. Depending on the size of the halide ions the coordination changes from octahedral in 1 to trigonal bipyramidal in 2 and tetrahedral in 3. The coordination in 4 is trigonal. Due to the geometric strain imposed by the ligand all coordination polyhedra show significant distortions. 1 and 2 form dimers by halide bridges. With the exception of 3 all compounds form “supramolecular” structures via hydrogen bonds, e.g. chains or networks.
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Reference£º
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics