Research Article: 6-Meth­oxy-1-(4-meth­oxy­phen­yl)-1,2,3,4-tetra­hydro-9H-β-carbolin-2-ium acetate

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Teik Beng Goh, Mohd Nizam Mordi, Sharif Mahsufi Mansor, Mohd Mustaqim Rosli, Hoong-Kun Fun.


In the title compound, C19H21N2O2+·C2H3O2−, 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 tetra­hydro­pyridinium fragment. The tetra­hydro­pyridinium ring adopts a half-chair conformation. In the crystal, cations and anions are linked by inter­ionic N—H⋯O, C—H⋯O and C—H⋯N hydrogen bonds into chains along the a axis.

Partial Text

For the biological activity of metal complexes with 6-meth­oxy-1-methyl-4,9-dihydro-3H-pyrido[3,4-b]indole, see: Al-Allaf et al. (1990 ▶); Herraiz et al. (2003 ▶). For a related tetra­chlorido­zincate structure, see: Goh et al. (2012 ▶). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986 ▶).