Please wait a minute...
Acta Phys. -Chim. Sin.  1999, Vol. 15 Issue (09): 860-864    DOI: 10.3866/PKU.WHXB19990917
Note     
Studies on p-aminoazobenzene(C12H11N3)Using Photoionization Mass Spectrum with Synchrotron Radiation(SR)
Wu Guo-Hua, Sheng Liu-Si, Gao Hui, Zhang Yun-Wu
Nationl Synchrotron Radiation Laboratory,University of Science and Technology of China,Hefei 230029
Download:   PDF(1381KB) Export: BibTeX | EndNote (RIS)      

Abstract  

In this paper, the photoionization and photodissociative ionization processes of p-aminoazobenzene (pAAB, C12H11N3) using coincidence technology with vacuum ultraviolet synchrotron radiation (SR) photoionizaton mass spectroscopy are reported. The ionization potential (IP) of this molecule and the appearance potentials (AP) of the important ionic fragments from the SR photodissociative ionization of pAAB have been measured. On the basis of the IP(C12H11N3) and AP measured in this experiment and the IP(C6H5) from the literature, the dissociative energy D 0(C 6H 5-N 2C 6H 4NH 2),D 0(C 6H + 5-N 2C 6H 4NH 2),D 0(C 6H 5-N 2C 6H 4NH + 2),D 0(C 6H 5N 2-C 6H 4NH 2 +) and ionization potential of free radical N 2C 6H 4NH 2 have been evaluated. Based on the results of the mass spectroscopy of pAAB obtained with SR photoionization, the possible channels of photodissociative ionization of pAAB have been analyzed. The processes(molecular ions or the fregmental ions) giving rise to the ions C 6H + 5 and C 6H 6N + need further study.  



Key wordsSynchrotron Radiation      Photoionization      Mass Spectrum      Ionization potential      p-aminoazobenzene     
Received: 30 December 1998      Published: 15 September 1999
Corresponding Authors: Wu Guo-Hua   
Cite this article:

Wu Guo-Hua, Sheng Liu-Si, Gao Hui, Zhang Yun-Wu. Studies on p-aminoazobenzene(C12H11N3)Using Photoionization Mass Spectrum with Synchrotron Radiation(SR). Acta Phys. -Chim. Sin., 1999, 15(09): 860-864.

URL:

http://www.whxb.pku.edu.cn/10.3866/PKU.WHXB19990917     OR     http://www.whxb.pku.edu.cn/Y1999/V15/I09/860

[1] Yan WANG,Xiong LI,Shanwei HU,Qian XU,Huanxin JU,Junfa ZHU. Morphologies and Electronic Structures of Calcium-Doped Ceria Model Catalysts and Their Interaction with CO2[J]. Acta Phys. -Chim. Sin., 2018, 34(12): 1381-1389.
[2] Ling-Xuan WANG,Hua-Tong ZHU,Li-Li ZU. Studying ionization and decomposition mechanism of alkyl dinitrites by mass spectrometry[J]. Acta Phys. -Chim. Sin., 2017, 33(8): 1709-1714.
[3] SUN Zhong-Fa, GAO Zhi, WU Xiang-Kun, TANG Guo-Qiang, ZHOU Xiao-Guo, LIU Shi-Lin. Excitation Spectra and Photodissociation Dynamics of the B2П State of the N2O+ Ion[J]. Acta Phys. -Chim. Sin., 2015, 31(5): 829-835.
[4] ZHAO Chun-Hong, TONG Sheng-Rui, GE Mao-Fa, SUN Zheng. Electronic Structure and Photoionization Dissociation Process of FC(O)SNCO[J]. Acta Phys. -Chim. Sin., 2015, 31(1): 23-31.
[5] CAO Guo-Jin, ZHENG Wei-Jun. Structures, Stabilities and Physicochemical Properties of Nucleobase Tautomers[J]. Acta Phys. -Chim. Sin., 2013, 29(10): 2135-2147.
[6] ZHANG Rong-Rong, QIN Chao-Chao, LONG Jin-You, YANG Ming-Hui, ZHANG Bing. Ultrafast Predissociation Dynamics of Excited State of Acrylic Acid[J]. Acta Phys. -Chim. Sin., 2012, 28(03): 522-527.
[7] TANG Jun, KANG Chao-Yang, LI Li-Min, XU Peng-Shou. Direct Graphene Growth by Depositing Carbon Atoms on Si Substrate Covered by SiC Buffer Layers[J]. Acta Phys. -Chim. Sin., 2011, 27(12): 2953-2959.
[8] WU Man-Man, TANG Xiao-Feng, NIU Ming-Li, ZHOU Xiao-Guo, DAI Jing-Hua, LIU Shi-Lin. Ionization and Dissociation of Methyl Chloride in an Excitation Energy Range of 13-17 eV[J]. Acta Phys. -Chim. Sin., 2011, 27(12): 2749-2754.
[9] ZHANG Li-Zhi, GAO Jian, ZHAO Dai-Qing, JIANG Li-Qiao, YANG Jiu-Zhong, WANG Zhan-Dong, JIN Han-Feng. Migration Pathways of Oxygen and the Formation of Oxygenated Intermediates in Oxygenated Fuel Combustion[J]. Acta Phys. -Chim. Sin., 2011, 27(08): 1809-1815.
[10] NIU Ming-Li, SONG Lei, TANG Xiao-Feng, ZHOU Xiao-Guo, LIU Shi-Lin, LIU Fu-Yi, SHAN Xiao-Bin, SHENG Liu-Si. Dissociation Dynamics of O+ Formation Channels from Vibrational State-Selected NO2+ at e3B2 State[J]. Acta Phys. -Chim. Sin., 2011, 27(08): 1797-1802.
[11] LI Wei-Wei, HOU Ruo-Bing, SUN Yan-Li. Characteristics of One Electron Redox Behavior of Hydrophobic AminoAcids in Gas Phase[J]. Acta Phys. -Chim. Sin., 2010, 26(10): 2772-2778.
[12] TANG Dian-Yong, HUANG Xue-Na, ZOU Ting, JIN Cheng, HU Jian-Ping, FU Qin-Chao. Geometric Structures and Electronic Properties of Small Gold-Palladium Binary Clusters[J]. Acta Phys. -Chim. Sin., 2010, 26(02): 453-460.
[13] LI Min-Jie, LI Ya-Jun, PENG Chun-Rong, LU Wen-Cong. Structures and Antioxidant Activities of Lespedezaflavonone from Lespedeza Virgata[J]. Acta Phys. -Chim. Sin., 2010, 26(02): 466-470.
[14] ZHU Hui, WANG Mei, CHENG Ling-Li, ZHU Rong-Rong, SUN Xiao-Yu, YAO Si-De, WU Qing-Sheng, WANG Shi-Long. Photoionization and Photoexcitation Mechanisms of Salicylic Acid[J]. Acta Phys. -Chim. Sin., 2010, 26(01): 87-93.
[15] GAO Jian, ZHAO Dai-Qing, WANG Xiao-Han, JIANG Li-Qiao, YANG Hao-Lin, YUAN Tao, YANG Jiu-Zhong. Comparative Study of Dimethyl Ether and Ethanol Premixed Laminar Flames at Low Pressure[J]. Acta Phys. -Chim. Sin., 2010, 26(01): 23-28.