7-Fluoroisatin–1,4-dioxane (1/1)

Abstract

The title 1,4-dioxane solvate, C8H4FNO2·C4H8O2, was isolated during a manual crystallization screen on 7-fluoro­isatin (7-fluoro­indoline-2,3-dione). The 7-fluoro­isatin mol­ecule occupies a general position and each of the independent mol­ecules of 1,4-dioxane is disposed about a centre of inversion, with half of each in the asymmetric unit. Hydrogen-bonded ribbons of 7-fluoro­isatin are linked by 1,4-dioxane to form sheets parallel to (30\overline{1}). Whilst one solvent mol­ecule has an active role in the sheet formation, the other simply fills the cavity formed within the sheet.