title: 4'-(4-Chloro-phen-yl)-3'-(4-meth-oxy-phen-yl)-3,4-dihydro-1H,4'H-spiro-[acridine-2,5'-isoxazol]-1-one.
abstract: In the title compound, C(28)H(21)ClN(2)O(3), the quinoline ring system is essentially planar with a maximum deviation of 0.0436 (17) Å. The isoxazole and cyclo-hexane rings adopt envelope conformations. The isoxazole ring is almost orthogonal to both the quinoline ring system and the cyclo-hexane ring, making dihedral angles of 85.75 (8) and 81.46 (9) °, respectively. The O atom deviates signifigantly from the six-membered carbocyclic ring by 0.3947 (16) Å. In the crystal, mol-ecules are linked into inversion dimers via pairs of C-H⋯O inter-actions, resulting in R(2) (2)(24) ring motifs.
authors.affiliation: Department of Physics, RKM Vivekananda College (Autonomous), Chennai 600 004,  India.
authors.forename: Ponmudisettu
authors.initials: P
authors.lastname: Narayanan
authors.forename: Shanmugavel Uma
authors.initials: SU
authors.lastname: Maheswari
authors.forename: Krishnan
authors.initials: K
authors.lastname: Sethusankar