【作者】 段春泱； 李娜； 赵岩； 李昌勇；

【Author】 DUAN Chun-yang;LI Na;ZHAO Yan;LI Chang-yong;State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University;School of Mathematics and Physics,Jinzhong University;Collaborative Innovation Center of Extreme Optics,Shanxi University;

【机构】 量子光学与光量子器件国家重点实验室山西大学激光光谱研究所； 晋中学院数理学院； 极端光学协同创新中心山西大学；

【摘要】 间异丙基苯酚是一种重要苯酚衍生物,常用作增塑剂或药剂中间体。许多酚类有机分子的激发态和离子态的信息已经被广泛和深入研究,间异丙基苯酚的相关信息还未见文献报道。间异丙基苯酚包含异丙基和羟基两个基团,每个基团可以有两个相对不同取向导致可能具有四个不同的旋转异构体。密度泛函理论计算表明基态的四个构型都是稳定的。为了确认和分辨四个异构体,实验测量了间异丙基苯酚的共振双光子电离光谱和烧孔光谱,确定了每个异构物的带源(band origin),分辨了共振多光子电离谱中各个异构物的振动谱,结合理论计算确定了各异构物的分子构型。进行了质量分辨阈值电离光谱测量,精确确定了各个异构物的电离能,支持了烧孔光谱四个异构物的确定。更多还原

【Abstract】 The m-isopropylphenol contains two groups:isopropyl and hydroxyl,and each group can have two relatively different orientations resulting in four different rotamers.Theory calculations show that the four configurations of the ground state are all stable.In order to identify and distinguish the rotamers,we measured the REMPI and hole burning spectra of m-isopropylphenol,determined the band origin of each rotamer,and resolved the REMPI spectra,MATI spectra was also measured,and the ionization energies were accurately determined,which supported the determination of the four rotamers in the hole burning spectrum.更多还原