title: (E)-3-(4-Methyl-phen-yl)-3-[3-(4-methyl-phen-yl)-1H-pyrazol-1-yl]-2-propenal.
abstract: In the title compound, C(20)H(18)N(2)O, the pyrazole ring adopts a planar conformation. The C-N bond lengths in the pyrazole ring are shorter than a standard C-N single bond (1.443 Å), but longer than a standard double bond (1.269 Å), indicating electron delocalization. The propenal group assumes an extended conformation. Inter-molecular C-H⋯O hydrogen bonds connect mol-ecules into cyclic centrosymmetric R(2) (2)(26) dimers, which are cross-linked via C-H⋯π inter-actions.
authors.forename: P
authors.initials: P
authors.lastname: Ramesh
authors.forename: A
authors.initials: A
authors.lastname: Subbiahpandi
authors.forename: Ramaiyan
authors.initials: R
authors.lastname: Manikannan
authors.forename: S
authors.initials: S
authors.lastname: Muthusubramanian
authors.forename: M N
authors.initials: MN
authors.lastname: Ponnuswamy