da Silva Lima, C.H. and de Souza, M.V.N. and Wardell, S.M.S.V. and Wardell, J.L. and Tiekink, E.R.T. (2010) N-(2-Chloroethyl)pyrazine-2-carboxamide. Acta Crystallographica Section E: Structure Reports Online, 66 (11). O2886-U819. ISSN 1600-5368,

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In the title molecule, C7H8ClN3O, the pyrazine and amide groups are almost co-planar [N-C-C-N torsion angle = -2.4 (2) degrees], a conformation stabilized by an intramolecular N-H center dot center dot center dot N hydrogen bond. The chloroethyl group lies out of the plane [N-C-C-Cl = -65.06 (17) degrees]. In the crystal, the presence of N-H center dot center dot center dot N hydrogen bonds leads to the formation of a C(6) supramolecular chain along the b axis. The carbonyl-O atom accepts two C-H center dot center dot center dot O interactions. These, plus Cl center dot center dot center dot Cl short contacts [3.3653 (6) angstrom], consolidate the packing of the chains in the crystal.

Item Type: Article
Subjects: Q Science > Q Science (General)
Depositing User: Mr Faizal 2
Date Deposited: 14 Jan 2015 02:06
Last Modified: 31 Jan 2019 01:53
URI: http://eprints.um.edu.my/id/eprint/12011

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