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Citation: Wu Guo-Hua, Sheng Liu-Si, Zhang Yun-Wu, Gao Hui, Chen Zu-Yao. Photoionization and Photodissociative lonization of Azoxybenzene(C12H10N2O) by Vacuum Ultraviolet Synchrotron Radiation (SR)[J]. Acta Physico-Chimica Sinica, ;2000, 16(10): 948-951. doi: 10.3866/PKU.WHXB20001015 shu

Photoionization and Photodissociative lonization of Azoxybenzene(C12H10N2O) by Vacuum Ultraviolet Synchrotron Radiation (SR)

1.
National Synchrotron Radiation Laboratory,University of Science Technology of China,Hefei 230026

Received Date: 7 December 1999
Available Online: 15 October 2000

The photoionization and photodissociative ionization processes of azoxybenzene (C12H10N2O,AOB) have been studied using the photoionization mass spectrometry with vacuum ultraviolet synchrotron radiation (SR) as the light source. The ionization potential (IP) of this molecule and four appearance potentials (AP) of the important ionic fragments from the SR photodissociative ionization of AOB have been measured. On the basis of the IP(C12H10N2O) and AP() measured in this experiment, the dissociative energy D0(-N2OC6H5) has been evaluated. Based on the results of the mass spectroscopy of AOB, the possible channels of photodissociative ionization of AOB have been analyzed.
- Synchrotron radiation;Photoionization;Mass spectrum;Ionization potential;Azoxybenzene
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