Acta Cryst. (2002). E58, o1384-o1386  [ doi:10.1107/S1600536802020482 ]

1,4-Diazaspiro[4.5]decane-2,3-dione

D. Stasko, M. C. Davis and R. D. Chapman

Abstract: The spirane 1,4-diazaspiro[4.5]decane-2,3-dione, C₈H₁₂N₂O₂, or 2,2-pentamethylene-4,5-imidazolidinedione, has been prepared and found to crystallize with two independent molecules in the asymmetric unit. Though nearly identical in geometry, the two distinct molecules undergo two different styles of co-operative hydrogen bonding, namely a planar and a canted arrangement.

Online 22 November 2002

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