NOVEL COPPER(II) COMPLEX WITH UNUSUAL P-STACKING STRUCTURE, [CuII(SSC)Cl]2в‹…CH3OHв‹…2H2O (SSC = SALICYLALDEHYDE SEMICARBAZONE ANION)
J.-L. Wang, B. Liu, B.-S. Yang, S.-P. Huang
Ключевые слова: HSSC, copper(II), complex, crystal structure, ПЂ-ПЂ interactions, weak interactions
Страницы: 589-593
Аннотация
The crystal structure of [Cu<sup>II</sup>(SSC)Cl]<sub>2</sub>⋅CH<sub>3</sub>OH⋅2H<sub>2</sub>O (SSC = salicylaldehyde semicarbazone anion) was determined by single crystal X-ray diffraction method at 293 K. Crystal data for Cu<sub>2</sub>C<sub>17</sub>H<sub>24</sub>Cl<sub>2</sub>N<sub>6</sub>O<sub>7</sub>: <i>a</i> = 10.272(2), <i>b</i> = 10.297(2), <i>c</i> = 11.462(2) A, α = 82.860(3)°, β = 78.384(3)°, γ = 81.330(2)°, triclinic, space group , <i>Z</i> = 2, <i>d</i><sub><i/>calc</sub> = 1.769 g/cm<sup>3</sup>, <i>R</i><sub><i/>1</sub> <br>= 0.038. One N and two O atoms of SSC<sup>-</sup> occupy three coordination sites around Cu(II). The fourth site is occupied by Cl<sup>-</sup> to yield distorted square-planar environment. Two molecules of the complex form a planar dimer through intermolecular N-H...KO hydrogen bonds. The most striking feature of the crystal structure is the packing of the planar dimers within the crystal. The interplanar distances between adjacent two layers are 3.280 A, indicative of strong π-π non-covalent interactions. Molecules of solvent methanol and water are included in the crystal as additional components.
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