Abstract
In the title compound, C21H15FN2O2, the furan ring has a flattened half-chair conformation [the methine C atom lies 0.136 (2) Å above the C5 plane which has an r.m.s. deviation of 0.0229 Å]. Overall, the 1H-benzo[f]chromene fused-ring system approximates a plane (r.m.s. deviation of the 14 non-H atoms = 0.049 Å). The fluorobenzene ring is almost perpendicular to this plane [dihedral angle = 89.58 (8)°]. Zigzag supramolecular tapes along the b axis are the most notable feature of the crystal packing. This arises through an alternating sequence of 12-membered {⋯HNC3N}2 and eight-membered {⋯HNCO}2 synthons. These are connected into a three-dimensional architecture by π–π [intercentroid distance for centrosymmetrically related fluorobenzene rings = 3.5181 (10) Å] and C—H⋯π interactions.
Highlights
In the title compound, C21H15FN2O2, the furan ring has a flattened half-chair conformation [the methine C atom lies
Zigzag supramolecular tapes along the b axis are the most notable feature of the crystal packing. This arises through an alternating sequence of 12-membered { HNC3N}2 and eightmembered { HNCO}2 synthons
These are connected into a three-dimensional architecture by – [intercentroid distance for centrosymmetrically related fluorobenzene rings =
Summary
University, Riyadh 11451, Saudi Arabia, bApplied Organic Chemistry Department, National Research Center, Dokki 12622, Cairo, Egypt, cChemistry Department, Faculty of Science, King Khalid University, Abha 61413, PO Box 9004, Saudi Arabia, d. Saud University, Riyadh 11451, Saudi Arabia, fDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia, and gChemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203 Jeddah, Saudi Arabia. Zigzag supramolecular tapes along the b axis are the most notable feature of the crystal packing. This arises through an alternating sequence of 12-membered { HNC3N}2 and eightmembered { HNCO}2 synthons. These are connected into a three-dimensional architecture by – [intercentroid distance for centrosymmetrically related fluorobenzene rings =.
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