Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Tungsten centers, characterization

When the Schiff base tungsten(0) compound mcr-[W(CO)(L)] (L = Ph2PC6H4CHNC6H4PPh2 Scheme 17) was exposed to HC1 gas, it converted to m-[WnCl2(CO)2(L )] (L = Ph2PC6H4CH2NHC6H4PPh2) as the final product. The 7r-iminium intermediate, i.e., the protonated complex mer-[W(CO)3(LH)]BF4, and the final product were both characterized structurally. In this reaction, the metal center has undergone a two-electron oxidation (W° to W11) and the original imine bond has been reduced to a secondary amine, as indicated by X-ray analysis and spectroscopic measurements.197... [Pg.552]

See other pages where Tungsten centers, characterization is mentioned: [Pg.70]    [Pg.474]    [Pg.134]    [Pg.113]    [Pg.474]    [Pg.111]    [Pg.261]    [Pg.275]    [Pg.178]    [Pg.234]    [Pg.82]    [Pg.26]    [Pg.2]    [Pg.287]    [Pg.450]    [Pg.991]    [Pg.357]    [Pg.5]    [Pg.69]    [Pg.391]    [Pg.542]    [Pg.544]    [Pg.542]    [Pg.544]    [Pg.293]    [Pg.208]    [Pg.385]    [Pg.4979]    [Pg.74]    [Pg.75]    [Pg.88]    [Pg.475]    [Pg.84]    [Pg.357]    [Pg.655]    [Pg.242]    [Pg.475]    [Pg.1003]    [Pg.2830]    [Pg.74]    [Pg.165]    [Pg.172]    [Pg.439]    [Pg.548]    [Pg.32]    [Pg.234]    [Pg.349]    [Pg.25]   
See also in sourсe #XX -- [ Pg.70 ]



SEARCH



Centers, characterization

© 2024 chempedia.info