Mohd Lair Nooraziah, Mohd Ali Hapipah, Ng Seik Weng
Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Acta Crystallogr Sect E Struct Rep Online. 2009 Apr 18;65(Pt 5):o1067. doi: 10.1107/S1600536809013786.
Each of the two independent mol-ecules of the title comound, C(14)H(20)N(2)O(3), exists in the zwitterionic form as the imino N atoms are protonated. The =N-H unit forms an intra-molecular hydrogen bond to the negatively charged O atom, and also a weaker intermolecular N-H⋯O bond, the latter resulting in inversion dimers.
标题化合物C(14)H(20)N(2)O(3)的两个独立分子中的每一个都以两性离子形式存在，因为亚氨基N原子被质子化。=N-H单元与带负电荷的O原子形成分子内氢键，并且还形成较弱的分子间N-H⋯O键，后者导致形成反演二聚体。
