Crystal structure of 4-bromo-2-[(E)-N-(2,2,6,6-tetramethylpiperidin-4-yl)carboximidoyl]phenol dihydrate


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Mague J. T. , Mohamed S. K. , AKKURT M. , Abdelhamid A. A. , Albayati M. R.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, vol.71, 2015 (Journal Indexed in ESCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 71
  • Publication Date: 2015
  • Doi Number: 10.1107/s2056989015007471
  • Title of Journal : ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS

Abstract

In the title hydrate, C16H23BrN2O center dot 2H(2)O, the organic molecule features a strong intramolecular O-H center dot center dot center dot N hydrogen bond. The piperidine ring, in addition, adopts a chair conformation with the exocyclic C-N bond in an equatorial orientation. The water molecules of crystallization are disordered (each over two sets of sites with half occupancy. In the crystal, they associate into corrugated (100) sheets of (H2O)(4) tetramers linked by O-H center dot center dot center dot O hydrogen bonds. The organic molecules, in turn, are arranged at both sides of these sheets, linked by water-piperidine O-H center dot center dot center dot N hydrogen bonds.