Abstract
In the title compound, C7H11Cl2NO, the piperidine ring shows a chair conformation and the bond-angle sum at the N atom is 359.9°. The H atom of the dichloromethyl group is in an eclipsed conformation with respect to the carbonyl group (H—C—C=O = −5°). In the crystal, inversion dimers are linked by pairs of C—H⋯O hydrogen bonds between the dichloromethyl group and the carbonyl O atom, which generate R 2 2(8) loops. The dimers are linked into a ladder-like structure propagating in the [100] direction by short O⋯Cl [3.1084 (9) Å] contacts.
Highlights
144 parameters All H-atom parameters refined Ámax = 0.36 e A À3 Ámin = À0.18 e A À3
The H atom of the dichloromethyl group is in an eclipsed conformation with respect to the carbonyl group (H—C—C O = À5)
Inversion dimers are linked by pairs of C—HÁ Á ÁO hydrogen bonds between the dichloromethyl group and the carbonyl O atom, which generate R22(8) loops
Summary
Monoclinic, P21=n a = 6.2972 (1) Ab = 15.4896 (2) Ac = 9.3709 (2) A T = 133 K 0.08 Â 0.07 Â 0.06 mm Crystal structure of 2,2-dichloro-1(piperidin-1-yl)ethanone Markus Schwierz,a Helmar Gorlsb and Wolfgang Imhofa* AUniversity Koblenz-Landau, Institute for Integrated Natural Sciences, Universitatsstrasse 1, 56070
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