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1-Ethyl-N'-[(E)-4-hydroxy-benzyl-idene]-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carbohydrazide.

ABSTRACT: In the crystal structure of the title compound, C(19)H(18)N(4)O(3), the fused-ring system is essentially planar [maximum deviation is 0.031?(2)?Å] while the dihedral angle between the ring system and the benzene ring is 12.64?(6)°.The carbohydrazide H atom is involved in an intra-molecular N-H?O hydrogen bond, forming a six-membered hydrogen-bonded ring. The mol-ecules arrange themselves into centrosymmetric dimers by means of inter-molecular O-H?O hydrogen bonds.

SUBMITTER: Deeba F 

PROVIDER: S-EPMC2969025 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature

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1-Ethyl-N'-[(E)-4-hydroxy-benzyl-idene]-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carbohydrazide.

Deeba Farah F   Khan Misbahul Ain MA   Zia-Ur-Rehman Muhammad M   Caylak Nagihan N   Sahin Ertan E  

Acta crystallographica. Section E, Structure reports online 20090325 Pt 4

In the crystal structure of the title compound, C(19)H(18)N(4)O(3), the fused-ring system is essentially planar [maximum deviation is 0.031 (2) Å] while the dihedral angle between the ring system and the benzene ring is 12.64 (6)°.The carbohydrazide H atom is involved in an intra-molecular N-H⋯O hydrogen bond, forming a six-membered hydrogen-bonded ring. The mol-ecules arrange themselves into centrosymmetric dimers by means of inter-molecular O-H⋯O hydrogen bonds. ...[more]

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