摘要
In this paper,we report the photoionization and photodissociative ionization processes of azobenzene(AB)by using vacuum ultraviolet synchrotron radiation (SR)photoionization mass spectroscopy.The ionization potential(IP)of the AB molecular and the appearance potential(AP)of the main ionic fragments from the SR photodissociative ionization of AB were measured.On the basis of IP(C12H10N2)and AP measured in this experiment,dissociative energy D0(C6H5-N2C6H5),D0(C6H5+-N2C6H5),D0(C6H5-N2C6H5+)and IP(C6H5N2)were evaluated.Based on the results of the mass spectroscopy of AB,the possible channel of the photodissociative ionization of AB was discussed.
In this paper,we report the photoionization and photodissociative ionization processes of azobenzene(AB)by using vacuum ultraviolet synchrotron radiation (SR)photoionization mass spectroscopy.The ionization potential(IP)of the AB molecular and the appearance potential(AP)of the main ionic fragments from the SR photodissociative ionization of AB were measured.On the basis of IP(C12H10N2)and AP measured in this experiment,dissociative energy D0(C6H5-N2C6H5),D0(C6H5+-N2C6H5),D0(C6H5-N2C6H5+)and IP(C6H5N2)were evaluated.Based on the results of the mass spectroscopy of AB,the possible channel of the photodissociative ionization of AB was discussed.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2003年第3期390-392,共3页
Chemical Research and Application
关键词
偶氮苯
同步辐射
光电离质谱
光解离
合成染料
azobenzen
synchrotron radiation
photoionization
photodissociation
mass spectrum
