Chin Chih-Hao, Lin Meng-Yeh, Huang Tzu-Ping, Wu Pei-Zhen, Wu Yu-Jong
National Synchrotron Radiation Research Center, 101 Hsin-Ann Road, Hsinchu Science Park, Hsinchu, 30076, Taiwan.
Department of Applied Chemistry, National Chiao Tung University, 1001, Ta-Hsueh Road, Hsinchu, 30010, Taiwan.
Sci Rep. 2018 Sep 26;8(1):14392. doi: 10.1038/s41598-018-32644-3.
The direct infrared (IR) absorption spectra of propargyl cations were recorded. These cations were generated via the electron bombardment of a propyne/Ar matrix sample during matrix deposition. Secondary photolysis with selected ultraviolet (UV) light was used for grouping the observed bands of various products. The band assignment of the propargyl cation in solid Ar was performed according by referring to the previous infrared photodissociation (IRPD) and velocity-map imaging photoelectron (VMI-PE) data, and via theoretical predictions of the anharmonic vibrational wavenumbers, band intensities, and deuterium-substituted isotopic ratios. Almost all the IR active bands with an observable intensity were recorded and the ν mode was reported for the first time.
记录了炔丙基阳离子的直接红外（IR）吸收光谱。这些阳离子是在基质沉积过程中通过对丙炔/氩基质样品进行电子轰击产生的。使用选定的紫外（UV）光进行二次光解，以对各种产物的观测谱带进行分组。通过参考先前的红外光解离（IRPD）和速度映射成像光电子（VMI-PE）数据，并通过对非谐振动波数、谱带强度和氘取代同位素比的理论预测，对固态氩中炔丙基阳离子进行了谱带归属。记录了几乎所有具有可观测强度的红外活性谱带，并首次报道了ν模式。
