Matviiuk Tetiana, Baltas Michel, Voitenko Zoia, Gorichko Marian, Lherbet Christian
National Taras Shevchenko University, Department of Chemistry, Volodymyrska str. 64, 01033 Kyiv, Ukraine.
Acta Crystallogr Sect E Struct Rep Online. 2013 May 25;69(Pt 6):o963. doi: 10.1107/S1600536813013779. Print 2013 Jun 1.
In the title compound, C23H18FNO3, the tricyclic 9-fluorenyl system is approximately planar (r.m.s. deviation = 0.0279 Å). The N-C(=O) bond length is comparatively short [1.359 (3) Å], which is typical for such conjugated systems. The N atom has a planar configuration [sum of bond angles= 359.8°] due to conjugation of its lone pair with the π-system of the carbonyl group. In the crystal, a three-dimensional network is formed through N-H⋯O and O-H⋯O hydrogen bonds between the amide and carb-oxy-lic acid groups and carbonyl O-atom acceptors.
在标题化合物C₂₃H₁₈FNO₃中，三环9-芴基体系近似平面（均方根偏差 = 0.0279 Å）。N-C(=O)键长相对较短[1.359(3) Å]，这对于此类共轭体系而言是典型的。由于N原子的孤对电子与羰基的π体系共轭，其具有平面构型[键角总和 = 359.8°]。在晶体中，通过酰胺基和羧基之间的N-H⋯O和O-H⋯O氢键以及羰基O原子受体形成三维网络。
