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The title compound, C
17H
11N
5O.H
2O, forms two-dimensional layers parallel to the (10
![\overline{1}](//journals.iucr.org/c/issues/1996/07/00/cf1063//teximages/cf1063fi1.gif)
) plane. The dihedral angle between the planes of the diazafluorene moiety and the pyridine ring is 27.74 (4)°. The crystal structure is stabilized by O—H
![...](/logos/entities/ctdot_rmgif.gif)
N, N—H
![...](/logos/entities/ctdot_rmgif.gif)
O, C—H
![...](/logos/entities/ctdot_rmgif.gif)
O and C—H
![...](/logos/entities/ctdot_rmgif.gif)
N hydrogen bonds.
Supporting information
![cif](https://journals.iucr.org//../logos/filetypeicons/bw/b1/ciflogo.png) | Crystallographic Information File (CIF) Contains datablocks lg27, global |
CCDC reference: 126925
![](https://journals.iucr.org/logos/arrows/smarrr.png)
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