The crucial role of CO as a ligand in the formation of long-lived neutral iron complexes in the gas phase

被引:12
作者
Schröder, D [1 ]
Bärsch, S [1 ]
Schwarz, H [1 ]
机构
[1] Tech Univ Berlin, Inst Organ Chem, D-10623 Berlin, Germany
关键词
D O I
10.1016/S0009-2614(99)00703-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Neutralization reionization (NR) mass spectra of mono- and bis-ligated iron cations Fe(L)(n)(+) (n = 1, 2) are reported for the simple ligands L = H2O, CO, C2H4, C4H6, C6H6, and NH3. Most of these iron complexes do not survive the NR process, and dissociation of the neutrals into Fe(+)nL prevails. Interestingly, those complexes containing CO ligands exhibit much more pronounced recovery signals in the NR spectra. Electronic arguments imply that the carbonyl ligand favors the generation of low-spin complexes of neutral iron which are less prone to dissociate and are not accessed with the other Ligands. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:407 / 413
页数:7
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