作者:Aakarsh Saxena、Robert D. Pike
DOI:10.1007/s10870-007-9246-1
日期:2007.10.22
heterocyclic thioureas from heterocyclic amines with phenyl- or methylisothiocyanate or CS2 is described. Seven new X-ray crystal structures are reported: In N-(3-pyridyl)-N′-phenylthiourea (Pna21, a = 10.1453(3), b = 17.6183(5), c = 6.4787(2), V = 1158.02(6), Z = 4) hydrogen-bonding results in formation of a 3D network consisting of helices, which form channels parallel to the c-axis. In N-(4-pyridyl)-N′-phenylthiourea
摘要描述了杂环胺与异硫氰酸苯酯或甲基异硫氰酸酯或 CS2 合成杂环硫脲。报告了七种新的 X 射线晶体结构:在 N-(3-吡啶基)-N'-苯基硫脲 (Pna21, a = 10.1453(3), b = 17.6183(5), c = 6.4787(2), V = 1158.02) (6), Z = 4) 氢键导致形成由螺旋组成的 3D 网络,螺旋形成平行于 c 轴的通道。在 N-(4-吡啶基)-N'-苯基硫脲 (P21/c, a = 16.9314(3), b = 10.3554(2), c = 13.5152(3), β = 106.5080(10), V = 2271.96( 8), Z = 4, 两个独立的分子) 氢键导致 N–H…S 桥接二聚体和 N–H…Py 链,形成二维片状网络。在 N-(2-嘧啶基)-N'-苯基硫脲 (P21/c, a = 5.45900(10), b = 13