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N′-[3-Cyano-4-(4-fluorophenyl)-6-methoxy-4H-benzo[h]chromen-2-yl]-N,N-dimethylmethanimidamide

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Author(s): Al-anood M. Al-dies | Mohamed A. Al-Omar | Abd El-Galil E. Amr | Ahmed M. El-Agrody | Seik Weng Ng | Edward R. T. Tiekink

Journal: Acta Crystallographica Section E
ISSN 1600-5368

Volume: 69;
Issue: 4;
Start page: o482;
Date: 2013;
Original page

ABSTRACT
In the title compound, C24H20FN3O2, despite the 4H-pyran ring having a flattened half-chair conformation [the methine C atom lies 0.257 (3) Å above the plane of the remaining atoms with an r.m.s. deviation of 0.0295 Å], the 14 non-H atoms of the 4H-benzo[h]chromene residue are approximately coplanar (r.m.s. deviation = 0.081 Å). The benzene ring is nearly perpendicular to this plane [dihedral angle = 76.18 (10)°], but the planar (r.m.s. deviation = 0.033 Å) dimethylmethanimidamide substituent is coplanar [dihedral angle = 1.96 (12)°]. In the crystal, centrosymmetric dimeric aggregates arise from C—H...N interactions, and these are connected into supramolecular layers in the ab plane by C—H...π and π–π [intercentroid (central C6 ring)...(outer C6 ring)i distance = 3.8564 (14) Å] interactions.
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