Synthesis and spectroscopic characterization of 3-(3,4-dimethoxyphenylethylamino)-methylidene-1,2,3,9-tetrahydropyrrolo[2,1-<i>b</i>]-quinazolin-9-one and crystal structure of its hydrochloride
作者:Sherzod Zhurakulov、Khayrulla Bobakulov、Akmaljon Tojiboev、Ulli Englert、Ruimin Wang、Irmgard Kalf、Valentina Vinogradova、Bakhodir Tashkhodjaev
DOI:10.1080/00387010.2022.2027989
日期:2022.2.7
by single-crystal X-ray diffraction at 100 K. The compound crystallizes in the monoclinic space group Cc, with a = 4.7149(18), b = 30.075(12), c = 14.199(6) Å, β = 91.852(8)°, Z = 4, V = 2012.4(14) Å3. The crystallographic study revealed E configuration of the C11 = N9′ bond. Electrostatic interactions between the organic cation and the chloride anion and classical N-H…Cl hydrogen bonds stabilize this
摘要 3-(3,4-二甲氧基苯基乙基氨基)-亚甲基-1,2,3,9-四氢吡咯并[2,1- b ]-喹唑啉-9-酮盐酸盐的结构在100°X射线单晶衍射测定K. 化合物在单斜空间群Cc中结晶,a = 4.7149(18), b = 30.075(12), c = 14.199(6) Å, β = 91.852(8)°, Z = 4, V = 2012.4 (14) Å 3。晶体学研究显示EC11 = N9'键的构型。有机阳离子和氯阴离子之间的静电相互作用以及经典的 NH…Cl 氢键稳定了这种盐。Hirshfeld 表面分析表明,H···H、H···C/C···H 和 H···O/O···H 代表了最突出的范德华接触。对于中性母体分子,氘代氯仿溶液中的核磁共振波谱显示两种互变异构体以3:1的比例共存。