There is certainly also an N1—H1⋯O4 hydrogen bond in between the indole nitro­gen and one other oxygen with the carboxyl­ate group over a symmetry-generated fumarate dianion (Desk two Displacement ellipsoids are drawn for the fifty% likelihood degree. Hydrogen atoms not associated with hydrogen bonding are omitted for clarity. Hydrogen bonds https://5-meo-dalt-freebase80245.azuria-wiki.com/659765/5_simple_statements_about_5_meo_dalt_freebase_explained