Molecular and crystal structure of 4′-cyanobenzo-15-crown-5
S. A. TalipovЗ. КаримовInstitute of Agricultural Irrigation and Mechanization, Tashkent, UzbekistanБ. Т. ИбрагимовА. К. ТашмухамедоваChemistry Faculty, Tashkent State University, Tashkent, UzbekistanN. Zh. SaifullinaChemistry Faculty, Tashkent State University, Tashkent, UzbekistanT. F. Aripov
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Annotatsiya
The crystal structure of 4′-cyanobenzo-15-crown-5 is determined by X-ray diffraction. The crystallographic parameters of single crystals are as follows: a = 40.479(6) Å, b = 8.821(2) Å, c = 8.484(2) Å, β = 93.94(2)°, V = 3022.2 Å3, Z = 8, d calcd = 1.27 g/cm3, and space group C2/c. The structure is solved by the direct method and refined by the least-squares procedure to R = 0.068. The conformation of the macrocycle in 4′-cyano-B15C5 is described by the a-a-g − -a-a-g-g − -a-a-g-a-g-a-a-s sequence of torsion angles.
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