Abstract
In the title compound, C19H18N4O2, the 1,8-naphthyridine ring system is essentially planar [r.m.s. deviation = 0.011 (3) Å]. The dihedral angle between the naphthyridine ring system and the phenyl ring is 28.95 (7)°. The carbohydrazide H atom is involved in an intramolecular N—H⋯O hydrogen bond, forming a six-membered hydrogen-bonded ring. In the crystal, the molecules arrange themselves into centrosymmetric dimers by means of intermolecular C—H⋯O hydrogen bonds.
Highlights
Data collectionFarah Deeba,a Misbahul Ain Khan,b Muhammad Zia-urRehman,a* Ertan Şahinc and Nagihan Çaylakd a Applied Chemistry Research Centre, PCSIR Laboratories Complex, Ferozpure Road, Lahore 54600, Pakistan, bDepartment of Chemistry, Islamia University, Bahawalpur, Pakistan, cDepartment of Chemistry, Faculty of Science, Atatürk University, 25240
The dihedral angle between the naphthyridine ring system and the phenyl ring is 28.95 (7)
H atoms treated by a mixture of independent and constrained refinement max = 0.19 e Å3
Summary
Farah Deeba,a Misbahul Ain Khan,b Muhammad Zia-urRehman,a* Ertan Şahinc and Nagihan Çaylakd a Applied Chemistry Research Centre, PCSIR Laboratories Complex, Ferozpure Road, Lahore 54600, Pakistan, bDepartment of Chemistry, Islamia University, Bahawalpur, Pakistan, cDepartment of Chemistry, Faculty of Science, Atatürk University, 25240. Turkey, and dDepartment of Physics, Sakarya University, Sakarya, Turkey. R factor = 0.060; wR factor = 0.175; data-to-parameter ratio = 14.6. H atoms treated by a mixture of independent and constrained refinement max = 0.19 e Å3. C19H18N4O2, the 1,8-naphthyridine ring system is essentially planar [r.m.s. deviation = 0.011 (3) Å]. The dihedral angle between the naphthyridine ring system and the phenyl ring is 28.95 (7). The carbohydrazide H atom is involved in an intramolecular N—H O hydrogen bond, forming a six-membered hydrogen-bonded ring. The molecules arrange themselves into centrosymmetric dimers by means of intermolecular C—H O hydrogen bonds
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