Synthesis and structural characterization of a 4-coordinate molybdenum(VI)dioxo diaryloxide, MoO2(O-2,6-t-Bu2C6H3)(2)center dot HO-2,6-t-Bu2C6H3

Authors
Hanna, TA Incarvito, CD Rheingold, AL
Citation
Ta. Hanna et al., Synthesis and structural characterization of a 4-coordinate molybdenum(VI)dioxo diaryloxide, MoO2(O-2,6-t-Bu2C6H3)(2)center dot HO-2,6-t-Bu2C6H3, INORG CHEM, 39(4), 2000, pp. 630
Citations number
11
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
INORGANIC CHEMISTRY
ISSN journal
00201669 → ACNP
Volume
39
Issue
4
Year of publication
2000
Database
ISI
SICI code
0020-1669(20000221)39:4<630:SASCOA>2.0.ZU;2-N
Abstract
The facile solution synthesis and spectroscopic and structural characteriza tion of 4-coordinate MoO2(OAr)2 . ArOH (1) where Ar = 2,6-di-tert-butylphen yl are described. MoO2(O-2,6-t-Bu2C6H3)(2). HO.2,6-t-Bu2C6H3 (1) was synthe sized by addition of LiOAr to MoO2Cl2 in CH3CN. Yields are reduced by concu rrent oxidation of the phenolic anion to form 3,3',5,5'-tetra-tert-butyl-4, 4'-diphenoquinone (4). Relatively strong Mo=O double bonds and p-electron d onation from the aryloxide oxygens appear to compensate for the unsaturatio n of the pseudotetrahedral metal center.