Electric Literature of 21436-03-3, Chemistry can be defined as the study of matter and the changes it undergoes. You’ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology.21436-03-3, Name is (1S,2S)-Cyclohexane-1,2-diamine, molecular formula is C6H14N2. In a patent, introducing its new discovery.
The structure of the title double salt, [Cr(rac-chxn)3][ZnCl4]Cl 3H2O (chxn is trans-1,2-cyclohexanediamine; C6H14N2), has been determined from synchrotron data. The CrIII ion is coordinated by six N atoms of three chelating chxn ligands, displaying a slightly distorted octahedral coordination environment. The distorted tetrahedral [ZnCl4]2- anion, the isolated Cl- anion and three lattice water molecules remain outside the coordination sphere. The Cr – N(chxn) bond lengths are in a narrow range between 2.0737(12) and 2.0928(12)A; the mean N – Cr – N bite angle is 82.1(4). The crystal packing is stabilized by hydrogen-bonding interactions between the amino groups of the chxn ligands and the water molecules as donor groups, and O atoms of the water molecules, chloride anions and Cl atoms of the [ZnCl4]2- anions as acceptor groups, leading to the formation of a three-dimensional network. The [ZnCl4]2- anion is disordered over two sets of sites with an occupancy ratio of 0.94:0.06.
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