Crystal structures of copper(II) compounds with racemic threonine |
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| Authors: | I A Diacon S V Donu L F Chapurina |
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| Institution: | (1) Institute of Applied Physics, Academy of Sciences of Moldova, Academiei 5, Chisinau, 20-28, Moldova;(2) Institute of Chemistry, Academy of Sciences of Moldova, Academiei 3, Chisinau, 20-28, Moldova |
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| Abstract: | Crystals structures of two modifications of the copper(II) compound with racemic threonine Cu(D-Tre)(L-Tre) are determined by the electron diffraction technique. The unit cell parameters, space group, and number of formula units per unit cell for the crystals of two modifications are as follows: a = 11.10(3) Å b = 9.56(2) Å, c = 5.11(2) Å, γ = 92.6(2)°, space group P21/b, and Z = 2 (I); and a = 22.20(3) Å, b = 9.56(2) Å, c = 5.11(2) Å, γ = 92.6(2)°, space group C21/b, and Z = 4 (II). The structures are polytypic modifications of the same compound. |
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