1,3-双（4-甲基苄基）嘧啶-2,4（1H，3H）-二酮
1,3-Bis(4-methyl-benz-yl)pyrimidine-2,4(1H,3H)-dione.
作者信息
Li Gong-Chun, Song Xiao-Ping, Zhang Li-Ke, Cui Jiao-Jiao, Yang Feng-Ling
机构信息
College of Chemistry and Chemical Engineering, Xuchang University, Xuchang, Henan Province 461000, People's Republic of China.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2009 Dec 19;66(Pt 1):o193. doi: 10.1107/S1600536809053586.
In the title mol-ecule, C(20)H(20)N(2)O(2), the central pyrimidine ring forms dihedral angles of 71.9 (1) and 69.8 (1)° with the two benzene rings. In the crystal, weak inter-molecular C-H⋯O hydrogen bonds link mol-ecules into centrosymmetric dimers. The crystal packing exhibits also π-π inter-actions as indicated by short distances of 3.674 (2) Å between the centroids of the pyrimidine rings of neighbouring mol-ecules.
在标题分子C(20)H(20)N(2)O(2)中，中心嘧啶环与两个苯环形成的二面角分别为71.9 (1)°和69.8 (1)°。在晶体中，弱的分子间C-H⋯O氢键将分子连接成中心对称的二聚体。如相邻分子嘧啶环质心之间3.674 (2) Å的短距离所示，晶体堆积还呈现π-π相互作用。
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