Omondi Bernard, Fernandes Manuel A, Layh Marcus, Levendis Demetrius C
Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO Wits 2050, South Africa.
Acta Crystallogr C. 2008 Mar;64(Pt 3):o137-8. doi: 10.1107/S0108270108002746. Epub 2008 Feb 9.
N-Phenylformamide, C(7)H(7)NO, crystallizes with two molecules in the asymmetric unit which have different conformations of the formylamino group, one being cis and the other trans. This is the first example of an arylformamide crystal containing both conformational isomers and it may thus be considered a cocrystal of the two conformers. The two molecules in the unit cell are linked through N-H...O hydrogen bonding to two other molecules, thereby forming hydrogen-bonded tetramers within the crystal structure.
N-苯基甲酰胺（C₇H₇NO）在不对称单元中以两个分子结晶，这两个分子的甲酰氨基具有不同的构象，一个是顺式，另一个是反式。这是含有两种构象异构体的芳基甲酰胺晶体的首个例子，因此它可被视为这两种构象异构体的共晶体。晶胞中的两个分子通过N-H...O氢键与另外两个分子相连，从而在晶体结构内形成氢键四聚体。
