condensation reaction of 4-aminoantipyrine and cis-butenedioic anhydride in toluene solution using triethylamine as catalyst, and characterized by X-ray diffraction and spectral techniques with density functional calculations. The experimental vibrational spectral bands were identified precisely with the aid of the theoretical vibrational modes, and the thermodynamic properties were also obtained by the
摘要 4-(2,5-dioxo-2 H-pyrrol-1(5 H )-yl)antipyrine, C 15 H 13 N 3 O 3 ,由
4-氨基安替比林与
顺丁烯二酸酐缩合反应合成。在
甲苯溶液中使用
三乙胺作为催化剂,并通过 X 射线衍射和光谱技术与密度泛函计算表征。借助理论振动模式精确识别实验振动谱带,并通过理论频率获得热力学性质。通过B3LYP/6-31G(d)方法获得的总静态偶极矩、极化率和一阶超极化率分别为1.6896 Debye、26.6464 A 3 和7.8445 × 10 -31 cm 5 /esu。NBO 分析结果表明该分子具有长程电子转移特性,具有外部扰动,并呈现长程电子转移特性,能隙为 3.895 eV。前沿分子轨道应该负责非线性光学和电子转移特性。结果表明,所研究的化合物可能是一种极好的光响应材料候选者。