title: 4-Cyano-1-methyl-pyridinium perchlor-ate.
abstract: The title salt, C7H7N2 (+)·ClO4 (-), crystallizes with alternating cations and anions in wavy sheets, which are formed by a number of C-H⋯O and C-H⋯N hydrogen bonds, lying approximately parallel to (001).
authors.affiliation: Department of Chemistry, Loyola University, New Orleans, LA 70118, USA.
authors.forename: Vu D
authors.initials: VD
authors.lastname: Nguyen
authors.affiliation: Department of Physics, Loyola University, New Orleans, LA 70118, USA.
authors.forename: Cameron A
authors.initials: CA
authors.lastname: McCormick
authors.affiliation: Department of Chemistry, Loyola University, New Orleans, LA 70118, USA.
authors.forename: Lynn V
authors.initials: LV
authors.lastname: Koplitz
authors.affiliation: Department of Chemistry, Tulane University, New Orleans, LA 70118, USA.
authors.forename: Joel T
authors.initials: JT
authors.lastname: Mague