Electrospray mass spectrometry and tandem mass spectrometry of bimetallic oxovanadium complexes

	Electrospray mass spectrometry and tandem mass spectrometry of bimetallic oxovanadium complexes
	Wu, ZJ ; Xu, XY ; Luo, SW ; Fang, DM ; Zhang, GL
刊名	JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
	2008
卷号	19 期号:9 页码:1247_1254
ISSN号	1044-0305
通讯作者	Wu, ZJ, Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China.
产权排序	1
中文摘要	A series of six bimetallic oxovanadium complexes (1-6 only one was purified) were investigated by electrospray quadrupole time-of-flight tandem mass spectrometry (ESI-QTOF-MS/MS) in negative-ion mode. Radical Molecular anions [M] were observed in S mode. Fragmentation patterns of [M] were proposed and elemental compositions of most of the product tons were confirmed on the basis of the high-resolution ESI-CID-MS/MS spectra. A complicated series of low-abundance product ions similar to lectron impact (El) ionization spectra indicated the radical character of the precursor ions. Fragment ions at m/z 241 200 and 182 seem to be the characteristic ions of bimetallic oxovanadium complexes. These ions implied the presence of a V-O-V bridge bond which light Contribute to stabilization of the radical. To obtain more information for Structural elucidation three representative bimetallic oxovanadium complexes (1-3) were analyzed further by MS in positive-ion mode. Positive-ion ESI-MS produced adduct ions of [M + H](+) [M + Na](+) and [M + K](+). The fragmentation patterns of [M + Na](+) were different than those of radical molecular anions [M](-). Relatively simple fragmentation occurred for [M + Na](+) possibly due to even-electron ion character. negative-ion MS and MS/MS spectra of the hydrolysis product of Complex I supported these finding in particular the existence of a V-O-V bridge bond.
学科主题	Biochemical Research Methods; Chemistry, Analytical; Chemistry, Physical; Spectroscopy
收录类别	SCI
语种	英语
WOS记录号	WOS:000259663900002
公开日期	2011-07-08
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/18089]
专题	成都生物研究所_天然产物研究
推荐引用方式 GB/T 7714	Wu, ZJ,Xu, XY,Luo, SW,et al. Electrospray mass spectrometry and tandem mass spectrometry of bimetallic oxovanadium complexes[J]. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY,2008,19(9):1247_1254.
APA	Wu, ZJ,Xu, XY,Luo, SW,Fang, DM,&Zhang, GL.(2008).Electrospray mass spectrometry and tandem mass spectrometry of bimetallic oxovanadium complexes.JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY,19(9),1247_1254.
MLA	Wu, ZJ,et al."Electrospray mass spectrometry and tandem mass spectrometry of bimetallic oxovanadium complexes".JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 19.9(2008):1247_1254.