title: 4-[(1-Adamant-yl)carbamo-yl]pyridinium chloride.
abstract: In the title compound, C(16)H(21)N(2)O(+)·Cl(-), the amide group makes a dihedral angle of 25.9 (1)° with respect to the pyridine ring. In the crystal, inter-molecular N-H⋯Cl bonds and weak C-H⋯Cl and C-H⋯O contacts link the cations and the anions into layers parallel to the ac plane. The layers are packed along [010] by hydro-phobic inter-actions between adamantane units.
authors.affiliation: Ordered Matter Science Research Center, Southeast University, Nanjing 210096, People's Republic of China.
authors.forename: Yingchun
authors.initials: Y
authors.lastname: Wang