Ebner, Alexander and Meier, Walter and Mugnier, Yves and Wachter, Joachim (2007) Investigation into the reaction of (t-BuC5H4)(2)Nb(eta(2)-Te-2)H with CH3Li: Hydride abstraction versus telluride methylation. INORGANICA CHIMICA ACTA, 360 (10). pp. 3330-3334. ISSN 0020-1693,
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The reaction of [(Cp2Nb)-Nb-'(Tez)H] (1) (Cp' = t-BUC5H4) with CH3Li in THF was examined by variable temperature H-1 NMR, ESR and mass spectroscopic means. From these methods it is evident that the diamagnetic compounds [(Cp2NbH2)-Nb-'(TeCH3)] (2) and [(Cp2Nb)-Nb-'(=Te)CH3] (3) as well as the paramagnetic compound [(Cp2Nb)-Nb-'(TeCH3)(2)] (4) form simultaneously. In the subsequent reaction of the intermediate solution with [CO2(CO)(8)] compound 4 was consumed and the compound [(Cp2Nb)-Nb-'(mu-TeCH3)(2)Co(CO)(2)] (5) formed in good yield. Complex 5 was characterized by IR and variable temperature H-1 NMR spectroscopies. Electrochemical two-electron reduction of 1 leads, in a quasi-reversible process, to products that are not stable in solution. (C) 2007 Published by Elsevier B.V.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | COORDINATION CHEMISTRY; CLUSTERS; COMPLEXES; CARBONYL; DERIVATIVES; UNITS; cobalt; carbonyl ligands; niobium; tellurium; electrochemistry |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Alumni or Retired Professors > Arbeitskreis Dr. Joachim Wachter |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 04 Dec 2020 10:14 |
| Last Modified: | 04 Dec 2020 10:14 |
| URI: | https://pred.uni-regensburg.de/id/eprint/32509 |
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