Home

Citation: YANG Bin, HUANG Chao-Qun, YANG Rui, WEI Li-Xia, WANG Jing, WANG Si-Sheng, SHAN Xiao-Bin, QI Fei, ZHANG Yun-Wu, SHENG Liu-Si, WANG Zhen-Ya, HAO Li-Qing, ZHOU Shi-Kang. Vacuum Ultraviolet Photoionization and Photodissociation of Pentafluoroethane[J]. Acta Physico-Chimica Sinica, ;2005, 21(05): 539-543. doi: 10.3866/PKU.WHXB20050516 shu

Vacuum Ultraviolet Photoionization and Photodissociation of Pentafluoroethane

1.
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230029; Laboratory of Environmental Spectroscopy, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031

Received Date: 19 November 2004
Available Online: 15 May 2005

The vacuum ultraviolet photoionization and photodissociation of pentafluoroethane have been studied by using synchrotron radiation. The ionization potential of pentafluoroethane is determined to be (12.25±0.10) eV. Photoionization efficiency (PIE) curves for CF₂CF₃⁺、CHFCF₃⁺、CF₂CF₂⁺、CF₃⁺、CHF₂⁺、CHF⁺ and CF⁺ have been measured. The appearance potentials (AP) of these ions are obtained from their PIE curves, and they are (13.93±0.10) eV, (15.25±0.10) eV, (15.12±0.10) eV, (13.30±0.05) eV, (13.05±0.08) eV, (19.17±0.10) eV and (19.56±0.15) eV, respectively. In addition, the energetics of the dissociative photoionizations have been examined by ab initio Gaussian-3 calculations. The computational results are useful in establishing the dissociation channels near the ionization thresholds. According to the experimental results and the energies calculated by Gaussian-3 theory, the main possible pathways of the photodissociation have been analyzed. And the dissociation energies of the molecule and its cation have been derived from experiment and calculation.
- Pentafluoroethane; Photoionization; Appearance potential; Dissociation energy
1. [1]
  Chongjing Liu , Yujian Xia , Pengjun Zhang , Shiqiang Wei , Dengfeng Cao , Beibei Sheng , Yongheng Chu , Shuangming Chen , Li Song , Xiaosong Liu . Understanding Solid-Gas and Solid-Liquid Interfaces through Near Ambient Pressure X-Ray Photoelectron Spectroscopy. Acta Physico-Chimica Sinica, 2025, 41(2): 2309036-0. doi: 10.3866/PKU.WHXB202309036
2. [2]
  Xiaowu Zhang , Pai Liu , Qishen Huang , Shufeng Pang , Zhiming Gao , Yunhong Zhang . Acid-Base Dissociation Equilibrium in Multiphase System: Effect of Gas. University Chemistry, 2024, 39(4): 387-394. doi: 10.3866/PKU.DXHX202310021
3. [3]
  Chi Zhang , Yi Xu , Xiaopeng Guo , Zian Jie , Ling Li . 五彩斑斓的秘密——物质显色机理. University Chemistry, 2025, 40(6): 266-275. doi: 10.12461/PKU.DXHX202407061
4. [4]
  Huasen Lu , Shixu Song , Qisen Jia , Guangbo Liu , Luhua Jiang . Advances in Cu₂O-based Photocathodes for Photoelectrochemical Water Splitting. Acta Physico-Chimica Sinica, 2024, 40(2): 2304035-0. doi: 10.3866/PKU.WHXB202304035
5. [5]
  Zian Lin , Yingxue Jin . Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry (MALDI-MS) for Disease Marker Screening and Identification: A Comprehensive Experiment Teaching Reform in Instrumental Analysis. University Chemistry, 2024, 39(11): 327-334. doi: 10.12461/PKU.DXHX202403066
6. [6]
  Xingchao Zhao , Xiaoming Li , Ming Liu , Zijin Zhao , Kaixuan Yang , Pengtian Liu , Haolan Zhang , Jintai Li , Xiaoling Ma , Qi Yao , Yanming Sun , Fujun Zhang . Photomultiplication-Type All-Polymer Photodetectors and Their Applications in Photoplethysmography Sensor. Acta Physico-Chimica Sinica, 2025, 41(1): 100007-0. doi: 10.3866/PKU.WHXB202311021
7. [7]
  Pengcheng Yan , Peng Wang , Jing Huang , Zhao Mo , Li Xu , Yun Chen , Yu Zhang , Zhichong Qi , Hui Xu , Henan Li . Engineering Multiple Optimization Strategy on Bismuth Oxyhalide Photoactive Materials for Efficient Photoelectrochemical Applications. Acta Physico-Chimica Sinica, 2025, 41(2): 2309047-0. doi: 10.3866/PKU.WHXB202309047
8. [8]
  Yan Liu , Xiaojun Han , Ping Xu , Guoxu Zhang , Yu Wang , Zhicheng Zhang , Dianpeng Qi . “Five Measures” Based Science and Education Integration Experimental Teaching Mode to Promote the Construction of “Specialized Experiment” Curriculum. University Chemistry, 2024, 39(10): 299-307. doi: 10.12461/PKU.DXHX202405002
9. [9]
  Guowen Xing , Guangjian Liu , Le Chang . Five Types of Reactions of Carbonyl Oxonium Intermediates in University Organic Chemistry Teaching. University Chemistry, 2025, 40(4): 282-290. doi: 10.12461/PKU.DXHX202407058
10. [10]
  Xin XIONG , Qian CHEN , Quan XIE . First principles study of the photoelectric properties and magnetism of La and Yb doped AlN. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1519-1527. doi: 10.11862/CJIC.20240064
11. [11]
  Xinyuan Shi , Chenyangjiang , Changyu Zhai , Xuemei Lu , Jia Li , Zhu Mao . Preparation and Photoelectric Performance Characterization of Perovskite CsPbBr₃ Thin Films. University Chemistry, 2024, 39(6): 383-389. doi: 10.3866/PKU.DXHX202312019
12. [12]
  Yuhang Zhang , Weiwei Zhao , Hongwei Liu , Junpeng Lü . Progress on Self-Powered Photodetectors Based on Low-Dimensional Materials. Acta Physico-Chimica Sinica, 2025, 41(3): 2310004-0. doi: 10.3866/PKU.WHXB202310004
13. [13]
  Jian Li , Yu Zhang , Rongrong Yan , Kaiyuan Sun , Xiaoqing Liu , Zishang Liang , Yinan Jiao , Hui Bu , Xin Chen , Jinjin Zhao , Jianlin Shi . Highly Efficient, Targeted, and Traceable Perovskite Nanocrystals for Photoelectrocatalytic Oncotherapy. Acta Physico-Chimica Sinica, 2025, 41(5): 100042-0. doi: 10.1016/j.actphy.2024.100042
14. [14]
  Yao Ma , Xin Zhao , Hongxu Chen , Wei Wei , Liang Shen . Progress and Perspective of Perovskite Thin Single Crystal Photodetectors. Acta Physico-Chimica Sinica, 2025, 41(4): 2309045-0. doi: 10.3866/PKU.WHXB202309045
15. [15]
  Xiaogang YANG , Xinya ZHANG , Jing LI , Huilin WANG , Min LI , Xiaotian WEI , Xinci WU , Lufang MA . Synthesis, structure, and photoelectric properties of Zinc(Ⅱ)-triphenylamine based metal-organic framework. Chinese Journal of Inorganic Chemistry, 2025, 41(10): 2078-2086. doi: 10.11862/CJIC.20250167
16. [16]
  Wenxu Liu , Feng Han , Boxuan Wang , Huayi Liu , Xiaobin Gu , Xin Zhang , Yao Liu . Comprehensive Chemical Experiment: Design, Synthesis, and Photoelectronic Properties Study of Fully Non-Fused Ring Electron Acceptors. University Chemistry, 2025, 40(10): 263-275. doi: 10.12461/PKU.DXHX202412021
17. [17]
  Jiaxi Xu , Yuan Ma . Influence of Hyperconjugation on the Stability and Stable Conformation of Ethane, Hydrazine, and Hydrogen Peroxide. University Chemistry, 2024, 39(11): 374-377. doi: 10.3866/PKU.DXHX202402049
18. [18]
  Xinyu Xu , Jiale Lu , Bo Su , Jiayi Chen , Xiong Chen , Sibo Wang . Steering charge dynamics and surface reactivity for photocatalytic selective methane oxidation to ethane over Au/Ti-CeO₂. Acta Physico-Chimica Sinica, 2025, 41(11): 100153-0. doi: 10.1016/j.actphy.2025.100153
19. [19]
  Li Zhou , Dongyan Tang , Yunchen Du . Focusing on the Cultivation of Outstanding Talents: A “Five in One” Approach to Promoting the Construction of Chemical Experimental and Practical Teaching System. University Chemistry, 2024, 39(7): 121-128. doi: 10.12461/PKU.DXHX202405037
20. [20]
  Yang Meiqing , Lu Wang , Haozi Lu , Yaocheng Yang , Song Liu . Recent Advances of Functional Nanomaterials for Screen-Printed Photoelectrochemical Biosensors. Acta Physico-Chimica Sinica, 2025, 41(2): 2310046-0. doi: 10.3866/PKU.WHXB202310046

Get Citation

PDF

XML

Metrics

PDF Downloads(2534)
Abstract views(3561)
HTML views(76)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return