Acta Crystallographica Section C

Crystal Structure Communications

Volume 62, Part 4 (April 2006)

organic compounds

hj3003 scheme

Acta Cryst. (2006). C62, o234-o236 [ doi:10.1107/S0108270106008687 ]

Di-tert-butyl ketone hydrazone and di-tert-butyl ketone triphenylphosphoranylidenehydrazone

C. Villiers, P. Thuéry and M. Ephritikhine

Abstract: Reaction of di-tert-butyl ketone with hydrazine hydrate gives di-tert-butyl ketone hydrazone, C₉H₂₀N₂, which is dimerized by double hydrogen bonding in the solid state. Further reaction of this compound with dibromotriphenylphosphorane gives di-tert-butyl ketone triphenylphosphoranylidenehydrazone, C₂₇H₃₃N₂P, in the structure of which double chains parallel to the c axis are formed through weak C-H [pi] and [pi] - [pi] stacking interactions. The hydrazone group is nearly planar in both cases. In the second compound, one of the aromatic rings is nearly coplanar with the hydrazone moiety, indicating possible [pi] -conjugation.

Formula: C₉H₂₀N₂ and C₂₇H₃₃N₂P


	Structure factor file (CIF format) (94.6 kbytes) [ doi:10.1107/S0108270106008687/hj3003Isup2.hkl ] Contains datablock I

	Structure factor file (CIF format) (452.0 kbytes) [ doi:10.1107/S0108270106008687/hj3003IIsup3.hkl ] Contains datablock II

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