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Ethyl 5-amino-1-(6-chloro-pyridazin-3-yl)-1H-pyrazole-4-carboxyl-ate.

ABSTRACT: In the title compound, C(10)H(10)ClN(5)O(2), the dihedral angle between the aromatic rings is 0.16?(9)°. Two S(6) ring motifs are formed due to intra-molecular N-H?N and N-H?O hydrogen bonds. In the crystal, inversion dimers linked by pairs of N-H?N hydrogen bonds generate R(2) (2)(14) [or R(4) (4)(10) via the intra-molecular hydrogen bonds] ring motifs. Polymeric chains propagating in [210] are formed as a result of inter-linking the dimers by pairs of C-H?N inter-actions, completing R(2) (2)(6) ring motifs.

SUBMITTER: Ather AQ 

PROVIDER: S-EPMC3008112 | biostudies-literature | 2010 Aug

REPOSITORIES: biostudies-literature

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Ethyl 5-amino-1-(6-chloro-pyridazin-3-yl)-1H-pyrazole-4-carboxyl-ate.

Ather Abdul Qayyum AQ   Tahir M Nawaz MN   Khan Misbahul Ain MA   Athar Muhammad Makshoof MM   Bueno Eliana Aparecida Silicz EA  

Acta crystallographica. Section E, Structure reports online 20100828 Pt 9

In the title compound, C(10)H(10)ClN(5)O(2), the dihedral angle between the aromatic rings is 0.16 (9)°. Two S(6) ring motifs are formed due to intra-molecular N-H⋯N and N-H⋯O hydrogen bonds. In the crystal, inversion dimers linked by pairs of N-H⋯N hydrogen bonds generate R(2) (2)(14) [or R(4) (4)(10) via the intra-molecular hydrogen bonds] ring motifs. Polymeric chains propagating in [210] are formed as a result of inter-linking the dimers by pairs of C-H⋯N inter-actions, completing R(2) (2)(6  ...[more]

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