title: β-Carboline (norharman).
abstract: The structure of β-carboline, also called norharman (systematic name: 9H-pyrido[3,4-b]indole), C(11)H(8)N(2), has been determined at 110 K. Norharman is prevalent in the environment and the human body and is of wide biological interest. The structure exhibits intermolecular N-H···N hydrogen bonding, which results in a one-dimensional herringbone motif. The three rings of the norharman molecule collectively result in a C-shaped curvature of 3.19 (13)° parallel to the long axis. The diffraction data show shorter pyridyl C-C bonds than those reported at the STO-3G level of theory.
authors: Department of Chemistry, University of York, Heslington, York YO10 5DD, England. rjt509@york.ac.uk
authors: Robert J
authors: RJ
authors: Thatcher
authors: Richard E
authors: RE
authors: Douthwaite
mesh_terms: D002243:Carbolines; D018360:Crystallography, X-Ray; D006247:Harmine / Q000031:analogs & derivatives* / Q000737:chemistry; D006860:Hydrogen Bonding; D007211:Indoles / Q000737:chemistry*; D015394:Molecular Structure; D018696:Neuroprotective Agents / Q000737:chemistry*; D011725:Pyridines / Q000737:chemistry*
chemical_list: D002243:Carbolines; D007211:Indoles; D018696:Neuroprotective Agents; D011725:Pyridines; D006247:Harmine; C010262:norharman