title: 6-Meth-oxy-1-(4-meth-oxy-phen-yl)-1,2,3,4-tetra-hydro-9H-β-carbolin-2-ium acetate.
abstract: In the title compound, C(19)H(21)N(2)O(2) (+)·C(2)H(3)O(2) (-), the 1H-indole ring system is essentially planar [maximum deviation = 0.0257 (14) Å] and forms a dihedral angle of 87.92 (7) Å with the benzene ring attached to the tetra-hydro-pyridinium fragment. The tetra-hydro-pyridinium ring adopts a half-chair conformation. In the crystal, cations and anions are linked by inter-ionic N-H⋯O, C-H⋯O and C-H⋯N hydrogen bonds into chains along the a axis.
authors.forename: Teik Beng
authors.initials: TB
authors.lastname: Goh
authors.forename: Mohd Nizam
authors.initials: MN
authors.lastname: Mordi
authors.forename: Sharif Mahsufi
authors.initials: SM
authors.lastname: Mansor
authors.forename: Mohd Mustaqim
authors.initials: MM
authors.lastname: Rosli
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun