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Title: Nonclassical oxygen atom transfer reactions of an eight-coordinate dioxomolybdenum( vi ) complex
The dioxomolybdenum( vi ) complex MoO 2 Cl 2 (dmf) 2 reacts with Pb(DOPO Q ) 2 (DOPO = 2,4,6,8-tetra- tert -butyl-1,9-dioxophenoxazinate) to give MoO 2 (DOPO Q ) 2 , which has an eight-coordinate structure with normal molybdenum-oxo bond distances and angles but elongated distances to the dioxophenoxazine ligand. The dioxo complex is deoxygenated by phosphines to produce octahedral Mo(DOPO Cat ) 2 , in which reduction has taken place at the ancillary ligands. This compound in turn reacts with trimethylamine- N -oxide to regenerate MoO 2 (DOPO Q ) 2 , allowing a catalytic cycle for phosphine oxidation. This represents an example of four-electron nonclassical oxygen atom transfer in which both the oxidized and reduced forms of the metal complexes can be observed.  more » « less
Award ID(s):
1112356
PAR ID:
10331401
Author(s) / Creator(s):
; ; ;
Date Published:
Journal Name:
Inorganic Chemistry Frontiers
Volume:
8
Issue:
11
ISSN:
2052-1553
Page Range / eLocation ID:
2865 to 2870
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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