The crystals of 2-(6-chloro-4-(p-tolylamino)pyrido[3,2-d]pyrimidin-1-ium-1-yl)acetate (zwitterionic form) oxonium bromide, C16H13ClN4O2·Br−·H3O+ (I) were prepared and studied by single-crystal X-ray diffraction method. The compound crystallizes in the triclinic space group P-1 with a = 8.3121(8) Å, b = 9.3885(8) Å, c = 13.2903(12)Å, α = 106.788(2)°, β = 95.204(3)°, γ = 110.871(2)°, V = 905.81(14) Å3, Z = 2; final R = 0.053, wR2 = 0.150. It is interesting that methylene C in the BrCH2COOH molecule binds to the N1 of the pyrimidine ring. In the crystal studied, two neighboring organic molecules are connected by hydrogen bonds through carboxylate oxygen, oxonium and bromide ions to form a dimer.
通过单晶X射线衍射法制备并研究了2-(6-
氯-4-(对
甲苯氨基)
吡啶并[3,2-d]
嘧啶-1-鎓-1-基)
乙酸酯(两性离子形式)
溴化氧鎓,
C16H13ClN4O2·Br−·
H3O+ (I)的晶体。该化合物以三斜晶系P-1空间群结晶,a = 8.3121(8) Å,b = 9.3885(8) Å,c = 13.2903(12)Å,α = 106.788(2)°,β = 95.204(3)°,γ = 110.871(2)°,V = 905.81(14) Å3,Z = 2;最终R = 0.053,wR2 = 0.150。有趣的是,BrCH2COOH分子中的亚甲基C与
嘧啶环的N1结合。在所研究的晶体中,两个相邻的有机分子通过
羧酸根氧、氧鎓和
溴离子之间的氢键连接形成