Oxidation of Cyclohexane by a High-Valent Iron Bispidine Complex: A Combined Experimental and Computational Mechanistic Study

被引:51
作者
Comba, Peter [1 ]
Maurer, Martin [1 ]
Vadivelu, Prabha [1 ]
机构
[1] Heidelberg Univ, Inst Anorgan Chem, D-69120 Heidelberg, Germany
关键词
D O I
10.1021/jp8037895
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
Experimental data suggest that there are various competing pathways for the catalytic and stoichiometric oxygenation of cyclohexane, assisted by iron-bispidine complexes and using various oxidants (H2O2, O-2, PhIO). Density functional theory calculations indicate that both Fe-IV=O and Fe-V=O species are accessible and efficiently transfer their oxygen atoms to cyclohexane. The reactivities of the two isomers each and the two possible spin states for the Fe-IV=O and Fe-V=O species are sufficiently different to allow an interpretation of the experimental data.
引用
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页码:13028 / 13036
页数:9
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