What is the difference between freebase and fumarate

The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate isotropic treatment of cell esds is used for estimating esds involving l.

Issue contents. Article statistics. Supporting information. Download PDF of article. Acta Cryst. Open access. Pham , A. Chadeayne , J. Golen and D. The fumarate salt has a single tryptammonium cation and half of a fumarate dianion in the asymmetric unit. The tryptammonium and fumarate ions are held together in one-dimensional chains by a series of N—H O hydrogen bonds. These chains are combinations of R 4 4 22 rings, and C 2 2 14 and C 4 4 28 parallel chains along [].

The fumarate salt of 4-HO-NMT crystallizes with a tryptammonium cation and one half of a fumarate dianion in the asymmetric unit. Keywords: crystal structure ; tryptamines ; indoles ; hydrogen bonding. Read article Similar articles. H-D H XHn H Note 0. Computing details top. Special details top Geometry. Follow Acta Cryst. The IUCr is a scientific union serving the interests of crystallographers and other scientists employing crystallographic methods. H atoms treated by a mixture of independent and constrained refinement.

Triclinic, P 1. Search IUCr Journals. Advanced search.