N1-(4-tert-Butylphenyl)-N2-hydroxy-α-oxo-α-phenylacetamidine and N2-hydroxy-N1-(4-nitrophenyl)-α-oxo-α-phenylacetamidine Hemihydrate

Abstract

The crystal structure of N1-(4-tert-butylphenyl)-N 2-hydroxy-α-oxo-α-phenylacetamidine and N 2-hydroxy-N1-(4-nitrophenyl)-α-oxo-α-phe nylacetamidine hemihydrate, were analyzed. The crystal structure determination was carried out to determine strength of hydogen-bonding capabilities of oxime group and to compare geometry of oxime moiety. C<inf>18</inf>H <inf>20</inf>N<inf>2</inf>O<inf>2</inf> crystallized in triclinic space group P1̄, while C<inf>14</inf>H<inf>11</inf>N<inf>2</inf>O<inf>4</inf>-0.5H <inf>2</inf>O crystallized in monoclinic space group P2<inf>1</inf>/n. The weak dipole-dipole and van der Waals interactions were also present in compounds.