Spectroelectrochemical investigation of pentacarbonyl(pyrazine)metal(0) (metal = Cr, Mo, W) complexes of group 6 elements

Date

2002-01-01

Author

Yaman, SO
Nalbant Esentürk, Emren
Kayran, C
Önal, Ahmet Muhtar

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The electrochemical behaviour of pentacarbony l(pyrazine) metal (0) complexes of the group 6 elements was studied by cyclic voltammetry in dichloromethane-(n-Bu)(4)NBF4 solvent-electrolyte couple at -20 degreesC vs. Ag/Ag+ or SCE reference electrode. Constant potential electrolyses of the complexes were carried out at their first oxidation peak potentials and monitored in situ by UV-Vis spectrometry. Electrolysis of W(CO)(5)pz produces [W(CO)(5)pz](+) and a similar electrochemical mechanism is expected both for Cr(CO)(5)pz and Mo(CO)(5)pz complexes. In situ low temperature constant current ESR electrolysis also confirmed the production of [W(CO)(5)pz](+) after the electron transfer.

Subject Keywords

Pyrazine, Metal carbonyls, Cyclic voltammetry

URI

https://hdl.handle.net/11511/53882

Journal

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES

Collections

Department of Chemistry, Article

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Citation Formats

S. Yaman, E. Nalbant Esentürk, C. Kayran, and A. M. Önal, “Spectroelectrochemical investigation of pentacarbonyl(pyrazine)metal(0) (metal = Cr, Mo, W) complexes of group 6 elements,” ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, pp. 92–98, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/53882.