title: 1'-Benzylspiro-[chromene-2,4'-piperi-dine]-4-carbonitrile.
abstract: In the title compound, C(21)H(20)N(2)O, the piperidine ring adopts a chair conformation while the pyran ring adopts a screw-boat conformation. The piperidine ring forms dihedral angles of 65.75 (3) and 67.79 (5)° with the chroman and methyl-substituted benzene rings, respectively. The crystal structure features weak C-H⋯π and π-π [centroid-centroid distance = 3.8098 (8) Å] inter-actions.
authors.affiliation: Department of Physics, Thiagarajar College, Madurai 625 009,  India.
authors.forename: P
authors.initials: P
authors.lastname: Rajalakshmi
authors.forename: N
authors.initials: N
authors.lastname: Srinivasan
authors.forename: R V
authors.initials: RV
authors.lastname: Krishnakumar