Crystal-structure of 1-(4-pyridylmethyl)-2,4,6-triphenyl pyridinium perchlorateстатья
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Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
Аннотация:1-(4-pyridylmethyl)-2,4,6-triphenylp yridinium perchlorate crystallizes in space group P-1 with 3 molecules per asymmetric unit. The cell parameters obtained are: a = 12.142(3), b = 16.972(4), c = 20.229(7) A, alp. = 83.66(4), beta = 74.83(3) and gamma = 69.47(2)". The crystal structure was determined using the direct methods technique. Anisotropic refinement was undertaken using block diagonal least squares. In the final cycle of the refinement the reliability factor was found to be Ro = 0.084 for 3982 reflections with I > 3s(I). All rings are planar within experimental errors. Rings B, C, D, and E are twisted withrespect to the central plane.