The unit-cell dimensions and space groups of 2-(benzylthio)imidazoline and 2-(benzylthio)tetrahydropyrimidine hydrochlorides

Abstract

926SHORT COMMUNICATIONS confirmed by the relatively large standard deviations in the coordinates of the A1 atoms.Statistical tests to distinguish between centrosymmetric and noncentrosymmetric structures seem inappropriate in this case. Any departures from a centrosymmetric arrangement must be small and to these the tests are relatively intensitive. The structures are also strongly layered, a feature which can significantly disturb the statistical distribution of intensities.