6533b85bfe1ef96bd12baa31
RESEARCH PRODUCT
Investigation into the reaction of (t-BuC5H4)2Nb(η2-Te2)H with CH3Li: Hydride abstraction versus telluride methylation
Joachim WachterAlexander EbnerYves MugnierWalter Meiersubject
Analytical chemistrychemistry.chemical_element010402 general chemistryElectrochemistry01 natural sciencesInorganic ChemistryParamagnetismchemistry.chemical_compoundcarbonyl ligandsTelluridetelluriumMaterials Chemistry[CHIM.COOR]Chemical Sciences/Coordination chemistryPhysical and Theoretical ChemistryComputingMilieux_MISCELLANEOUS010405 organic chemistryHydride[ CHIM.COOR ] Chemical Sciences/Coordination chemistrycobalt0104 chemical sciencesCrystallographychemistryelectrochemistryYield (chemistry)Proton NMRTelluriumniobiumCobaltdescription
Abstract The reaction of [ Cp 2 ′ Nb ( Te 2 ) H ] ( 1 ) (Cp′ = t -BuC 5 H 4 ) with CH 3 Li in THF was examined by variable temperature 1 H NMR, ESR and mass spectroscopic means. From these methods it is evident that the diamagnetic compounds [ Cp 2 ′ NbH 2 ( TeCH 3 ) ] ( 2 ) and [ Cp 2 ′ Nb ( Te ) CH 3 ] ( 3 ) as well as the paramagnetic compound [ Cp 2 ′ Nb ( TeCH 3 ) 2 ] ( 4 ) form simultaneously. In the subsequent reaction of the intermediate solution with [Co 2 (CO) 8 ] compound 4 was consumed and the compound [ Cp 2 ′ Nb ( μ - TeCH 3 ) 2 Co(CO) 2 ] ( 5 ) formed in good yield. Complex 5 was characterized by IR and variable temperature 1 H NMR spectroscopies. Electrochemical two-electron reduction of 1 leads, in a quasi-reversible process, to products that are not stable in solution.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2007-07-01 |