Supramolecular solid-state structure, potential energy surfaces and evaluation of antiproliferative effect of 2-benzothiazolylhydrazone derivatives in vitro
作者:Robert Katava、Sandra Kraljević Pavelić、Anja Harej、Tomica Hrenar、Gordana Pavlović
DOI:10.1007/s11224-016-0856-0
日期:2017.6
6-methoxy-2-naphthaldehyde produced 9 hydrazone Schiff bases (L1–L9, respectively) which were identified and characterized by elemental analysis, IR and NMR spectroscopy. The crystal and molecular structures of four Schiff bases (L1, L7–L9) have been determined by the single-crystal X-ray diffraction method confirming the imino form of L1 and the amino tautomeric form of L7–L9 compounds. Molecular structure analysis
2-肼基苯并噻唑与水杨醛、3,4-二羟基苯甲醛、2,4-二羟基苯甲醛、2,5-二羟基苯甲醛、2,3-二羟基苯甲醛、2-羟基-1-萘甲醛、2-甲氧基-1-的原位缩合反应萘醛、4-甲氧基-1-萘醛和6-甲氧基-2-萘醛产生9 种腙席夫碱(分别为L1-L9),通过元素分析、IR 和NMR 光谱对其进行鉴定和表征。四种席夫碱(L1、L7-L9)的晶体和分子结构已通过单晶 X 射线衍射法确定,证实了 L1 的亚氨基形式和 L7-L9 化合物的氨基互变异构形式。分子结构分析还证实,报告的化合物是 E 异构体,相对于 exo C = N 亚氨基键。氨基互变异构体的Nhydrazino-H基团形成Nhydrazino-H···Nthiazolyl分子间氢键使分子形成R22(8)环,而L1的亚氨基互变异构体通过Nthiazolyl-H···Nhydrazino型形成C(4)无限螺旋链分子间氢键。甲氧基(L7