GAS-PHASE SYNTHESIS AND FT/ICR MASS-SPECTROMETRIC CHARACTERIZATION OF SANDWICH COMPLEXES OF SC+, Y+, AND LANTHANIDE IONS WITH 1,3,5-TRI-TERT-BUTYLBENZENE

被引:64
作者
YIN, WW
MARSHALL, AG
MARCALO, J
DEMATOS, AP
机构
[1] OHIO STATE UNIV,DEPT CHEM,COLUMBUS,OH 43210
[2] LNETI,ICEN,DEPT QUIM,P-2686 SACAVEM,PORTUGAL
关键词
D O I
10.1021/ja00098a029
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Gas-phase reactions of Sc+, Y+, and lanthanide metal ions (M(+)) with 1,3,5-tri-tert-butylbenzene (L) have been investigated at 10(-6) to 10(-7) Torr by means of FT/ICR mass spectrometry in the first systematic study in which all of the lanthanide series elements (except for Pm+) are included. For Sm+, Eu+, Tm+, and Yb+, sandwich complex ions, ML(2)(+), are formed by successive addition of intact ligand. The other metal ions activate C-H and C-C bonds, reacting with the tert-butyl group to form product ions with elimination of hydrogen, methane, and other neutrals. For all of the lanthanide series ions, the primary ion-molecule reaction pathway is controlled by the metal ion electronic configuration and the 4f to 5d promotion energy of the ion.
引用
收藏
页码:8666 / 8672
页数:7
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