Heptacoordinated Molybdenum(VI) Complexes of Phenylenediamine Bis(phenolate) – A Stable Molybdenum Amidophenoxide Radical



: A Stable Molybdenum Amidophenoxide Radical

: Mikko M Hänninen, Petriina Paturi, Heikki M Tuononen, Reijo Sillanpää, Ari Lehtonen

Publisher: American Chemical Society

: 2013

: Inorganic Chemistry

: INORGANIC CHEMISTRY

: Inorg. Chem.

: 10

: 52

: 10

: 5714

: 5721

: 8

: 0020-1669

DOI: https://doi.org/10.1021/ic302355b


The syntheses, crystallographic structures, magnetic properties, and theoretical studies of two heptacoordinated molybdenum complexes with N,N'-bis(3,5-di-tert-butyl-2-hydroxyphenyl)-1,2-phenylenediamine (H4N2O2) are reported. A formally molybdenum(VI) complex [Mo(N2O2)Cl-2(dmf)] (1) was synthesized by the reaction between [MoO2Cl2(dmf)(2)] and H4N2O2, whereas the other molybdenum(VI) complex [Mo(N2O2)(HN2O2)] (2) was formed when [MoO2(acac)(2)] was used as a molybdenum source. Both complexes represent a rare case of the Mo-VI ion without any multiply bonded terminal ligands. In addition, molecular structures, magnetic measurements, ESR spectroscopy, and density functional theory calculations indicate that complex 2 is the first stable molybdenum(VI) amidophenoxide radical.



Last updated on 2024-26-11 at 12:19