Acta Cryst. (2002). E58, o371-o373  [ doi:10.1107/S1600536802004063 ]

An O-bridged BONBON ring system (phenol adduct)

W. Kliegel, K. Drückler, B. O. Patrick, S. J. Rettig and J. Trotter

Abstract: 1,4-Diphenyl-3,3:6,6-bis(tetramethylene)-2,5,7-trioxa-3,6-diazonia-1,4-diboratabicyclo[2.2.1]heptane-phenol (1/1), C₂₀H₂₆B₂N₂O₃·C₆H₅OH, contains a six-membered boat-shaped BONBON ring, with an O bridge forming a bicyclic system. The phenol molecule shows some disorder, and is linked to the heterocycle by an O-HO hydrogen bond. The molecular dimensions of the heterocycle differ slightly from those of the parent (phenol-free) crystal, presumably as a result of the hydrogen bonding.

Online 8 March 2002

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