ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, vol.79, pp.254-258, 2023 (ESCI)
In the title compound, C(32)H(29)N(5)O2 center dot C3H7NO, the bicyclo[3.3.1]nonane ring system adopts a half-chair/twist-boat conformation, with the phenyl rings in equatorial orientations with respect to the piperidine ring. The two oxane rings of the 2-oxabicyclo[2.2.2]octane ring system exhibit a distorted boat conformation. Intermolecular C-H center dot center dot center dot O and C-H center dot center dot center dot N hydrogen bonds connect the molecules in the crystal, generating layers extending parallel to (100). These layers are connected by C-H center dot center dot center dot pi interactions. A Hirshfeld surface analysis was performed to quantify the contributions of the different intermolecular interactions, indicating that the most important contributions to the crystal packing are from H center dot center dot center dot H (52.5%), N center dot center dot center dot H/H center dot center dot center dot N (19.2%), C center dot center dot center dot H/H center dot center dot center dot C (18.8%) and O center dot center dot center dot H/H center dot center dot center dot O (8.3%) interactions.