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In the title compound, C 31 H 24 F 4 N 2 O, the bicyclo­[3.3.1]nonane ring exists in a chair-boat conformation. Two of the four fluorine-substituted rings adopt equatorial dispositions with the piperidin-4-one rings. Mol­ecules are linked into a two-dimensional network parallel to (    01) by N—H⋯O, C—H⋯F and C—H⋯O hydrogen bonds. Inter­molecular N—H⋯π and C—H⋯π inter­actions are also observed.

2,4,6,8-Tetrakis(4-fluorophenyl)-3,7-diazabicyclo[3.3.1]nonan-9-one