Synthesis and Crystal Structure of Charge Transfer Complex (CTC) of 2-Aminobenzothiazole with Its Schiff Base
作者:Huihong Li、Jing Li、Hongxia Chen、Yong Zhang、Dan Huang
DOI:10.1007/s10870-011-0185-5
日期:2011.12
A novel charge transfer complex (CTC), C14H10N2OS·C7H6N2S was synthesized by the reaction of 2-aminobenzothiazole (ABT) with its derivative Schiff base (2-((benzo[d]thiazol-2-ylimino) methyl) phenol is abbreviated as BYMBP) in THF. This complex was characterized by 1HNMR, 13CNMR, IR and UV–vis. Crystal structure of the complex has been determined by X-ray diffraction. The crystal is triclinic, space group P-1 with the unit cell parameters a = 9.7732(5), b = 9.9936(4), c = 11.0193(7) Å and α = 71.901(9), β = 78.686(10), γ = 70.397(9)°, Z = 2, R = 0.0499. wR 2 = 0.1190. The structure of the title complex was fully optimized at the RB3LYP/6-311++g(d,p) level of theory and CTC’s π–π stacking interaction, bond lengths (Å) and angles (°) were calculated. A novel 1:1 complex was synthesized because of π–π stacking , C–H⋯π and C–H⋯N interactions in its molecule.
一个新型电荷转移复合物(CTC),C14H10N2OS·C7H6N2S,是通过2-氨基苯噻唑(ABT)与其衍生物施夫碱(2-((苯并[d]噻唑-2-亚基)甲基)酚,简称为BYMBP)在四氢呋喃(THF)中反应合成的。该复合物通过1H NMR、13C NMR、红外光谱(IR)和紫外-可见光谱(UV-vis)进行了表征。该复合物的晶体结构通过X射线衍射确定。晶体为三斜晶系,空间群为P-1,晶胞参数为a = 9.7732(5) Å,b = 9.9936(4) Å,c = 11.0193(7) Å,α = 71.901(9)°,β = 78.686(10)°,γ = 70.397(9)°,Z = 2,R = 0.0499,wR² = 0.1190。该复合物的结构在RB3LYP/6-311++g(d,p)理论水平下进行了完全优化,并计算了CTC的π–π堆积相互作用、键长(Å)和角度(°)。由于分子中的π–π堆积、C–H⋯π和C–H⋯N相互作用,合成了一个新型的1:1复合物。