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Crystal structure of (4Z)-4-[(2E)-1-hydroxy-3-(naphthalen-2-yl)prop-2-en-1-yl-idene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one.

ABSTRACT: In the title compound, C23H18N2O2, the pyrazole ring subtends dihedral angles of 2.01?(13) and 1.55?(10)° with the pendant benzene ring and the naphthalene ring system, respectively. The mol-ecule is almost planar (r.m.s. deviation for the 27 non-H atoms = 0.025?Å) and intra-molecular O-H?O and C-H?O hydrogen bonds both close S(6) loops. In the crystal, very weak aromatic ?-? stacking inter-actions between the benzene and the pyrazole rings, with centroid-centroid distances of 3.8913?(14) and 3.9285?(15)?Å, are observed.

SUBMITTER: Salim M 

PROVIDER: S-EPMC4459333 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Crystal structure of (4Z)-4-[(2E)-1-hydroxy-3-(naphthalen-2-yl)prop-2-en-1-yl-idene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one.

Salim Muhammad M   Munawar Munawar Ali MA   Tahir Muhammad Nawaz MN   Shahid Muhammad M   Malik Khizar Iqbal KI  

Acta crystallographica. Section E, Crystallographic communications 20150509 Pt 6

In the title compound, C23H18N2O2, the pyrazole ring subtends dihedral angles of 2.01 (13) and 1.55 (10)° with the pendant benzene ring and the naphthalene ring system, respectively. The mol-ecule is almost planar (r.m.s. deviation for the 27 non-H atoms = 0.025 Å) and intra-molecular O-H⋯O and C-H⋯O hydrogen bonds both close S(6) loops. In the crystal, very weak aromatic π-π stacking inter-actions between the benzene and the pyrazole rings, with centroid-centroid distances of 3.8913 (14) and 3.  ...[more]

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