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2-Amino-4-(2-chloro-phen-yl)-5,10-dioxo-5,10-dihydro-4H-benzo[g]chromene-3-carbonitrile.

ABSTRACT: In the mol-ecule of the title compound, C(20)H(11)ClN(2)O(3), the pyran ring adopts a flattened-boat conformation. In the crystal structure, inter-molecular N-H?N and N-H?O hydrogen bonds generate edge-fused R(2) (2)(12) and R(2) (2)(14) ring motifs; the hydrogen-bonded motifs are linked to each other, forming a three-dimensional network. A ?-? contact [centroid-to-centroid distance = 3.879?(3)?Å] between the chloro-phenyl rings may further stabilize the structure.

SUBMITTER: Zhang J 

PROVIDER: S-EPMC2967857 | biostudies-other | 2008

REPOSITORIES: biostudies-other

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2-Amino-4-(2-chloro-phen-yl)-5,10-dioxo-5,10-dihydro-4H-benzo[g]chromene-3-carbonitrile.

Zhang Jinpeng J   Zhang Xiaohong X   Yan Shu S   Ma Ning N   Tu Shujiang S  

Acta crystallographica. Section E, Structure reports online 20081203 Pt 1

In the mol-ecule of the title compound, C(20)H(11)ClN(2)O(3), the pyran ring adopts a flattened-boat conformation. In the crystal structure, inter-molecular N-H⋯N and N-H⋯O hydrogen bonds generate edge-fused R(2) (2)(12) and R(2) (2)(14) ring motifs; the hydrogen-bonded motifs are linked to each other, forming a three-dimensional network. A π-π contact [centroid-to-centroid distance = 3.879 (3) Å] between the chloro-phenyl rings may further stabilize the structure. ...[more]