Abstract
The three fused five- and six-membered rings in the title compound, C19H14N2O2S, are virtually coplanar, with the maximum deviation from the mean plane being 0.060 (1) Å. This benzothieno[3,2-b]pyran ring system is nearly perpendicular to the plane of the 4-methoxyphenyl ring, forming a dihedral angle of 83.65 (5)°. In the crystal, molecules are linked by pairs of N—H⋯N hydrogen bonds into inversion dimers. The dimeric units are further connected by an N—H⋯O hydrogen bond into a tape running along the b axis. The tapes are linked together by C—H⋯N and π–π interactions [centroid–centroid distance = 3.7743 (8) Å], forming a three-dimensional network.
Highlights
The three fused five- and six-membered rings in the title compound, C19H14N2O2S, are virtually coplanar, with the maximum deviation from the mean plane being 0.060 (1) Å. This benzothieno[3,2-b]pyran ring system is nearly perpendicular to the plane of the 4-methoxyphenyl ring, forming a dihedral angle of 83.65 (5)
Molecules are linked by pairs of N—H N hydrogen bonds into inversion dimers
The dimeric units are further connected by an N—
Summary
The three fused five- and six-membered rings in the title compound, C19H14N2O2S, are virtually coplanar, with the maximum deviation from the mean plane being 0.060 (1) Å. This benzothieno[3,2-b]pyran ring system is nearly perpendicular to the plane of the 4-methoxyphenyl ring, forming a dihedral angle of 83.65 (5) . Molecules are linked by pairs of N—H N hydrogen bonds into inversion dimers. H-atom parameters constrained max = 0.30 e Å3
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