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
ABI
Аннотация
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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