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2-Amino-4-(4-chloro-phen-yl)-4H-chromeno[8,7-b]pyridine-3-carbonitrile.

ABSTRACT: The asymmetric unit of the title compound, C19H12ClN3O, contains two mol-ecules with similar conformations. The 14 non-H atoms comprising the 4H-chromeno[8,7-b]pyridine residue are essentially coplanar (r.m.s. deviations = 0.037 and 0.042?Å for the two mol-ecules) and the main difference between them is seen in the twist about the bond linking the main residue to the attached chloro-benzene rings [dihedral angles = 79.01?(12) and 76.22?(11)° for the two mol-ecules]. Zigzag supra-molecular chains along the a-axis direction mediated by amino-pyridine N-H?N hydrogen bonds feature in the crystal packing; these are connected into a three-dimensional architecture by C-H?? inter-actions and Cl?Cl contacts [Cl?Cl = 3.3896?(14)?Å].

SUBMITTER: Amr Ael-G 

PROVIDER: S-EPMC3629505 | biostudies-literature | 2013 Apr

REPOSITORIES: biostudies-literature

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2-Amino-4-(4-chloro-phen-yl)-4H-chromeno[8,7-b]pyridine-3-carbonitrile.

Amr Abd El-Galil E Ael-G   El-Agrody Ahmed M AM   Sabry Nermien M NM   Ng Seik Weng SW   Tiekink Edward R T ER  

Acta crystallographica. Section E, Structure reports online 20130302 Pt 4

The asymmetric unit of the title compound, C19H12ClN3O, contains two mol-ecules with similar conformations. The 14 non-H atoms comprising the 4H-chromeno[8,7-b]pyridine residue are essentially coplanar (r.m.s. deviations = 0.037 and 0.042 Å for the two mol-ecules) and the main difference between them is seen in the twist about the bond linking the main residue to the attached chloro-benzene rings [dihedral angles = 79.01 (12) and 76.22 (11)° for the two mol-ecules]. Zigzag supra-molecular chains  ...[more]

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