Studies on Gas-phase Cyclometalations of [ArNi(PPh3)n]+ (n=1 or 2) by Electrospray Ionization Tandem Mass Spectrometry

被引：3

作者：

Zhou, Jing ^{[2
]}

Zhao, Qian ^{[1
]}

Chen, Wen-Wen ^{[1
]}

Wang, Haoyang ^{[2
]}

Lin, Guo-Qiang ^{[1
]}

Xu, Ming-Hua ^{[1
]}

Guo, Yinlong ^{[2
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Organ Chem, CAS Key Lab Synthet Chem Nat Subst, Shanghai 200032, Peoples R China

[2] Chinese Acad Sci, Shanghai Inst Organ Chem, Shanghai Mass Spectrometry Ctr, Shanghai 200032, Peoples R China

来源：

JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY | 2010年 / 21卷 / 07期

基金：

中国国家自然科学基金;

关键词：

C-H BONDS; COLLISION-INDUCED DISSOCIATION; PLATINUM(II) COMPLEXES; METAL-COMPLEXES; THERMAL-ACTIVATION; OXIDATIVE ADDITION; NICKEL; ARYL; DERIVATIVES; NI;

D O I：

10.1016/j.jasms.2010.03.040

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Gas-phase cyclometalation of [ArNi(PPh3)(n)](+) (n = 1, 2) complexes have been studied by ESI-MS/MS. The electron-donating substituents of aromatic iodides in the para position were found to inhibit the cyclometalation process of losing ArH, while the electron-withdrawing substituents in the para position were found to enhance it. These results indicate that the cyclometalation process of losing ArH is favored by electron-deficient aromatic groups. In addition, the detailed dissociation pathways of the cationic nickel complexes were studied, and among these pathways, the process of aryl-aryl interchange was also found to proceed in ESI-MS/MS. (J Am Soc Mass Spectrom 2010, 21, 1265-1274) (C) 2010 American Society for Mass Spectrometry

引用

页码：1265 / 1274

页数：10

共 68 条

[1] Structural characterization of fatty acids cationized with copper by electrospray ionization mass spectrometry under low-energy collision-induced dissociation [J].