Isoxazole derivatives of alpha-pinene isomers: Synthesis, crystal structure, spectroscopic characterization (FT-IR/NMR/GC–MS) and DFT studies
作者:Serpil Eryılmaz、Melek Gül、Ersin İnkaya、Murat Taş
DOI:10.1016/j.molstruc.2015.11.079
日期:2016.3
ground state and geometric parameters were compared with the X-ray analysis results of the structure. Results of the experimental FT-IR and NMR spectral analysis were examined in order to determine the compliance with vibrational frequencies, 1H NMR and 13C NMR chemical shifts values by using the Gauge-Independent Atomic Orbital (GIAO) method calculated over the optimized structure. Besides molecular
摘要 本文通过1,3-偶极环加成反应合成了α-蒎烯异恶唑衍生物(3a-bc, 4a-b),并用FT-IR、1H NMR、13C NMR和GC-MS进行了表征。异恶唑 (C21H23NO) 化合物 (4a) 6,6,7a,-trimethyl-3-(naphthalen-2-yl)-3a,4,5,6,7,7a-hexahydro-5,7-methanobenzo[d] 是用 X 射线单晶衍射技术表征。该化合物在单斜空间群 P 212121 中结晶,Z = 4。通过应用密度泛函理论 (DFT/B3LYP) 方法使用 6-31G(d,p) 和 6-311 + G 优化化合物的分子几何结构(d,p) 基态和几何参数的基组与结构的 X 射线分析结果进行了比较。检查实验 FT-IR 和 NMR 光谱分析的结果以确定与振动频率的一致性,1H NMR 和 13C NMR 化学位移值通过使用与规范无关的原子轨道