Mechanism of Reduction of Cymantrene (Tricarbonyl η5-Cyclopentadienylmanganese) and Its Methyl Carboximidate Derivative

[img]PDF - Authorized users only
Language: English
157Kb
Title:Mechanism of Reduction of Cymantrene (Tricarbonyl η5-Cyclopentadienylmanganese) and Its Methyl Carboximidate Derivative
Creators:
Salmain, Michèle
Jaouen, Gérard
Fiedler, Jan
Sokolová, Romana
Pospíšil, Lubomír
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 66, 1, pp. 155-169
Uncontrolled Keywords:Cymantrene, Cyclopentadienyl ligands, Voltammetry, Spectroelectrochemistry, Imidates, Electroreductions, Manganese tricarbonyl complexes

Abstract

The mechanisms of electrochemical reduction of cymantrene, [Mn(CO)<sub>3</sub>(η<sup>5</sup>-Cp)], and its ring-substituted methyl carboximidate derivative, [Mn(CO)<sub>3</sub>(η<sup>5</sup>-C<sub>5</sub>H<sub>4</sub>C(NH)OMe)], were studied by voltammetry, <i>in situ</i> IR spectroelectrochemistry and preparative electrolysis. The product of one-electron reduction undergoes further chemical reactions. Comparison of the data obtained under atmosphere of argon and that of carbon monoxide leads to the conclusion that a ligand substitution reaction and dimerization participate in the overall reaction sequence. FTIR spectra recorded <i>in situ</i> suggest product dimerization, the formation of [Mn(CO)<sub>5</sub>]<sup>-</sup> and, to a lesser extent, other unstable species. The dimer formation was not observed in the course of the reduction of the carboximidate. <p>

Title:Mechanism of Reduction of Cymantrene (Tricarbonyl η5-Cyclopentadienylmanganese) and Its Methyl Carboximidate Derivative
Creators:
Salmain, Michèle
Jaouen, Gérard
Fiedler, Jan
Sokolová, Romana
Pospíšil, Lubomír
Uncontrolled Keywords:Cymantrene, Cyclopentadienyl ligands, Voltammetry, Spectroelectrochemistry, Imidates, Electroreductions, Manganese tricarbonyl complexes
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:66
Number:1
Page Range:pp. 155-169
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20010155UNSPECIFIED
ID Code:1783
Item Type:Article
Deposited On:06 Feb 2009 17:12
Last Modified:06 Feb 2009 16:12

Citation

Salmain, Michèle; Jaouen, Gérard; Fiedler, Jan; Sokolová, Romana; Pospíšil, Lubomír (2001) Mechanism of Reduction of Cymantrene (Tricarbonyl η5-Cyclopentadienylmanganese) and Its Methyl Carboximidate Derivative. Collection of Czechoslovak Chemical Communications, 66 (1). pp. 155-169. ISSN 0010-0765

Repository Staff Only: item control page