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Crystal structure and Hirshfeld surface analysis of (E)-N'-[4-(piperidin-1-yl)benzyl-idene]aryl-sulfono-hydrazides.


ABSTRACT: The crystal structures and Hirshfeld surface analyses of three Schiff bases, namely (E)-N'-[4-(piperidin-1-yl)benzyl-idene]benzene-sulfono-hydrazide, C18H21N3O2S, (I), (E)-4-methyl-N'-[4-(piperidin-1-yl)benzyl-idene]benzene-sulfono-hydrazide, C19H23N3O2S, (II), and (E)-4-chloro-N'-[4-(piperidin-1-yl)benzyl-idene]benzene-sulfono-hydrazide, C18H20ClN3O2S, (III), derived from aryl-sulfono-hydrazides and 4-(piperidin-4-yl)benzaldehyde have been analysed to investigate the effect of substituents on the structural parameters. All three structures crystallize in monoclinic crystal systems, in the space groups P21/c for (I) and (II), and C2/c for (III). Compound (III) contains two independent mol-ecules in the asymmetric unit and sixteen mol-ecules per unit cell, while (I) and (II) both have one and four mol-ecules, respectively, in their asymmetric units and unit cells. In all cases, the central part of the mol-ecule is twisted at the S atom. In the crystals, the mol-ecules are linked via N-H⋯O hydrogen bonds, forming chains. Two-dimensional fingerprint plots of various inter-atomic contacts show that the major contributions are from H⋯H inter-actions.

SUBMITTER: Pai N 

PROVIDER: S-EPMC6281096 | biostudies-literature |

REPOSITORIES: biostudies-literature

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