A Density Functional Theory Study on the McLafferty-type Rearrangement in even electron ions under Electrospray Ionization (ESI) Conditions

被引:1
|
作者
Ouyang, Yongzhong [1 ]
Xiao, Saijin [1 ]
Zhang, Xinglei [1 ]
Jia, Bin [1 ]
Chen, Huanwen [1 ]
机构
[1] E China Inst Technol, Jiangxi Key Lab Mass Spectrometry & Instrumentat, Dept Appl Chem, Nanchang, Jiangxi, Peoples R China
关键词
McLafferty-type rearrangement; density functional theory (DFT); even ions; Electrospray ionization(ESI); INTRAMOLECULAR HYDROGEN-TRANSFER; GAS-PHASE BASICITIES; MASS-SPECTROMETRY; SPECTRA; MOLECULES;
D O I
10.4028/www.scientific.net/AMR.340.397
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
To further verify the possibility of the McLafferty-type rearrangement in even ions formed in electrospray ionization (ESI) conditions, the formation of m/z 173 ions in the dissociation of protonated belactosin precursor (m/z 215) has been investigated by density functional theory (DFT) at the B3LYP/6-31+G (d, p) level. The theoretical calculations show that the formation of m/z 173 ions can be explained by the McLafferty-type rearrangements, which further demonstrates that the McLafferty-type rearrangement occurring in even ions under ESI is possible. This will be very useful for structural analysis in even ions.
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页码:397 / 401
页数:5
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