CRYSTAL STRUCTURE OF 4-HYDROXY-6-METHYL-3-[(1E)-1-(2-PHENYLHYDRAZINYLIDENE)ETHYL]-2H-PYRAN-2-ONE
O.T. Ujam1,2, O.C. Ogbonna1, A. Oliver3, J.I. Ume1, E. Janusson2, C.C. Chime4
1University of Nigeria, Nsukka, Enugu State, Nigeria
2University of Victoria, Victoria, Canada
3University of Notre Dame, Notre Dame, USA
4Enugu State University of Science and Technology, Enugu State, Nigeria
Keywords: single X-ray crystal structure, Schiff base, ESI-mass spectrometry
Abstract
A Schiff base, 4-hydroxy-6-methyl-3-[(1E)-1-(2-phenylhydrazinylidene)ethyl]-2H-pyran-2-one, is synthesized and characterized by 1H and 13C NMR, IR spectroscopy, ESI-mass spectrometry and single crystal X-ray diffraction analysis. There are three crystallographically independent molecules in the asymmetric unit, space group C2/c, a = 30.011(2) Å, b = 17.601(2) Å, c = 13.6878(13) Å, β = 92.532(4)°, and Z = 24. The final reliable index is 0.0406 for 5997 reflections. The molecules are linked through intermolecular N-H…O hydrogen bonds into three-linked molecules forming a supramolecular ring.
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