title: Structure and intramolecular hydrogen bonding of 1-phenazinecarboxylic acid.
abstract: C13H8N2O2, Mr = 224.22, monoclinic, P2(1)/n, a = 18.149 (2), b = 14.2768 (9), c = 3.8191 (3) A, beta = 92.029 (6) degrees, V = 988.95 A3, Z = 4, Dx = 1.51 g cm-3, lambda (Cu K alpha) = 1.54178 A, mu = 7.61 cm-1, F(000) = 464, T = 163 (1) K, R = 0.037 for 1479 data with I greater than or equal to 2 sigma (I). An intramolecular hydrogen bond is observed between the carboxyl hydrogen atom and the nearby nitrogen atom with the N...O distance being 2.67 A.
authors.affiliation: Department of Chemistry and Biochemistry, University of Oklahoma, Norman 73019.
authors.forename: X H
authors.initials: XH
authors.lastname: Ji
authors.forename: D
authors.initials: D
authors.lastname: van der Helm
authors.forename: B C
authors.initials: BC
authors.lastname: Hemming
authors.forename: B L
authors.initials: BL
authors.lastname: Haymore
mesh_terms: D003460:Crystallization; D006860:Hydrogen Bonding; D008956:Models, Chemical; D008968:Molecular Conformation; D010619:Phenazines / Q000737:chemistry; D014961:X-Ray Diffraction
chemical_list: D010619:Phenazines; C037165:1-phenazinecarboxylic acid