Shefter E
Science. 1968 Jun 21;160(3834):1351-2. doi: 10.1126/science.160.3834.1351.
X-ray structural analysis of a crystalline complex between acridine C(13)H(9)N, cytosine C(4)H(5)N(3)O, and water (1:1:1) has been completed. The cytosine and water molecules form a sheet-like structure through a series of hydrogen bonds. The acridine molecules are bound to this layer through a hydrogen bridge from the water to the ring nitrogen. The acridine molecules stack in a parallel fashion normal to the cytosine-water sheets, with an average interplanar spacing of 3.5 angstroms.
已完成对吖啶（C₁₃H₉N）、胞嘧啶（C₄H₅N₃O）和水（1:1:1）形成的晶体复合物的X射线结构分析。胞嘧啶分子和水分子通过一系列氢键形成片状结构。吖啶分子通过从水到环氮的氢键桥与该层结合。吖啶分子以平行方式垂直于胞嘧啶 - 水片层堆积，平均平面间距为3.5埃。
