| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1195405 | Journal of the American Society for Mass Spectrometry | 2010 | 10 Pages |
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.
Graphical AbstractCyclometalations of [ArNi(PPh3)n]+ were observed and studied by ESI-MS/MS. The results indicated that cyclometalation pathway of losing ArH was favored by electron-deficient aromatic groups.Figure optionsDownload full-size imageDownload high-quality image (55 K)Download as PowerPoint slide
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