Mohamed Shaaban Kamel, El-Remaily Mahmoud A A, Gurbanov Atash V, Khalilov Ali N, Ng Seik Weng
Acta Crystallogr Sect E Struct Rep Online. 2011 Feb 26;67(Pt 3):o719. doi: 10.1107/S1600536811006507.
There are two independent mol-ecules in the asymmetric unit of the title compound, C(13)H(13)N(5). In each mol-ecule, an amino N atom is connected to a benzimidazole fused-ring system and a pyrimidine ring [these are aligned at 1.3 (1)° in one independent mol-ecule and at 5.4 (1)° in the other]. The amino N atom of the fused ring forms an intra-molecular N-H⋯O hydrogen bond to a pyrimidine N atom in each mol-ecule. The amino N atom connecting the two ring systems inter-acts with the other N atom of the pyrimidine ring of an adjacent mol-ecule, generating centrosymmetric hydrogen-bonded dimers.
标题化合物C(13)H(13)N(5)的不对称单元中有两个独立分子。在每个分子中，一个氨基氮原子连接到一个苯并咪唑稠环体系和一个嘧啶环[在一个独立分子中二者呈1.3 (1)°排列，在另一个分子中呈5.4 (1)°排列]。稠环的氨基氮原子与每个分子中的一个嘧啶氮原子形成分子内N-H⋯O氢键。连接两个环体系的氨基氮原子与相邻分子嘧啶环的另一个氮原子相互作用，形成中心对称的氢键二聚体。
