4-(2-Methoxyphenyl)piperazin-1-ium 6-chloro-5-isopropyl-2,4-dioxopyrimidin-1-ide
2014; International Union of Crystallography; Volume: 70; Issue: 3 Linguagem: Inglês
10.1107/s1600536814002256
ISSN1600-5368
AutoresFatmah A. M. Al-Omary, Hazem A. Ghabbour, Ali A. El‐Emam, C. S. Chidan Kumar, Hoong‐Kun Fun,
Tópico(s)Synthesis and Characterization of Heterocyclic Compounds
ResumoIn the cation of the title salt, C11H17N2O(+)·C7H8ClN2O2 (-), the piperazine ring adopts a distorted chair conformation and contains a positively charged N atom with quaternary character. Its mean plane makes a dihedral angle of 42.36 (8)° with the phenyl ring of its 2-meth-oxy-phenyl substituent. The 2,4-dioxopyrimidin-1-ide anion is generated by deprotonation of the N atom at the 1-position of the pyrimidine-dione ring. Intra-molecular C-H⋯O hydrogen bonds generate S(6) ring motifs in both the cation and the anion. In the crystal, N-H⋯O, N-H⋯N and C-H⋯O hydrogen bonds are also observed, resulting in a two-dimensional network parallel to the ab plane. The crystal stability is further consolidated by weak C-H⋯π inter-actions.
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