Fitzgerald L J, Gerkin R E
Department of Chemistry, Ohio State University, Columbus, 43210, USA.
Acta Crystallogr C. 1997 Jan 15;53 ( Pt 1):71-3. doi: 10.1107/s0108270196011213.
Anthracene-9-carboxylic acid, C15H10O2, was found to crystallize in the centrosymmetric space group P2(1)/n. The hydrogen bonding is of the cyclic-dimer type about a center of symmetry. The carboxyl O atoms are ordered, as is the carboxyl H atom. The anthracene core is almost planar and shows good agreement with the anthracene core of anthracene-1, 8-dicarboxylic acid. The carboxyl group plane makes a dihedral angle of 54.87 (6) degrees with the best-fit anthracene core plane.
蒽-9-羧酸（C15H10O2）被发现以中心对称空间群P2(1)/n结晶。氢键为围绕对称中心的环状二聚体类型。羧基O原子有序排列，羧基H原子也是如此。蒽核几乎是平面的，并且与蒽-1,8-二羧酸的蒽核吻合良好。羧基平面与最佳拟合的蒽核平面形成54.87 (6) 度的二面角。
