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Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode
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| Zeitschriftentitel: | Canadian Journal of Chemistry |
|---|---|
| Personen und Körperschaften: | , |
| In: | Canadian Journal of Chemistry, 74, 1996, 10, S. 1896-1902 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Canadian Science Publishing
|
| Schlagwörter: |
| author_facet |
Ahmed, S. Saha, S.K. Ahmed, S. Saha, S.K. |
|---|---|
| author |
Ahmed, S. Saha, S.K. |
| spellingShingle |
Ahmed, S. Saha, S.K. Canadian Journal of Chemistry Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode Organic Chemistry General Chemistry Catalysis |
| author_sort |
ahmed, s. |
| spelling |
Ahmed, S. Saha, S.K. 0008-4042 1480-3291 Canadian Science Publishing Organic Chemistry General Chemistry Catalysis http://dx.doi.org/10.1139/v96-213 <jats:p> An electrochemical investigation on five progressively alkylated thiazine dyes in the presence of Fe(III) ions is reported. The theory of the catalytic regeneration mechanism involving an electrode reaction followed by a coupled chemical reaction is applied to derive kinetic parameters of homogeneous reaction. The second-order rate constant for the reaction of thiazine leucodyes with Fe(III) ions was found to increase from 0.25 × 10<jats:sup>4</jats:sup> to 1.6 × 10<jats:sup>4</jats:sup> dm<jats:sup>3</jats:sup> mol<jats:sup>−1</jats:sup> s<jats:sup>−1</jats:sup> upon monomethylation and to vary from 0.7 × 10<jats:sup>4</jats:sup> for the dimethyl derivative to 1.4 × 10<jats:sup>4</jats:sup> dm<jats:sup>3</jats:sup>mol<jats:sup>−1</jats:sup> s<jats:sup>−1</jats:sup> for the tetramethyl one. The electron-donating nature as well as the hydrophobic characteristics of the methyl group influence the kinetics of the homogeneous reaction. Key words: cyclic voltammetry, thiazine dyes, ferric ion, catalytic regeneration, kinetics </jats:p> Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode Canadian Journal of Chemistry |
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Canadian Science Publishing, 1996 |
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Canadian Science Publishing, 1996 |
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Canadian Journal of Chemistry |
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| title |
Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_unstemmed |
Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_full |
Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_fullStr |
Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_full_unstemmed |
Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_short |
Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_sort |
electrochemical study of the reaction between progressively alkylated thiazine leucodyes and fe(iii) on a glassy carbon electrode |
| topic |
Organic Chemistry General Chemistry Catalysis |
| url |
http://dx.doi.org/10.1139/v96-213 |
| publishDate |
1996 |
| physical |
1896-1902 |
| description |
<jats:p> An electrochemical investigation on five progressively alkylated thiazine dyes in the presence of Fe(III) ions is reported. The theory of the catalytic regeneration mechanism involving an electrode reaction followed by a coupled chemical reaction is applied to derive kinetic parameters of homogeneous reaction. The second-order rate constant for the reaction of thiazine leucodyes with Fe(III) ions was found to increase from 0.25 × 10<jats:sup>4</jats:sup> to 1.6 × 10<jats:sup>4</jats:sup> dm<jats:sup>3</jats:sup> mol<jats:sup>−1</jats:sup> s<jats:sup>−1</jats:sup> upon monomethylation and to vary from 0.7 × 10<jats:sup>4</jats:sup> for the dimethyl derivative to 1.4 × 10<jats:sup>4</jats:sup> dm<jats:sup>3</jats:sup>mol<jats:sup>−1</jats:sup> s<jats:sup>−1</jats:sup> for the tetramethyl one. The electron-donating nature as well as the hydrophobic characteristics of the methyl group influence the kinetics of the homogeneous reaction. Key words: cyclic voltammetry, thiazine dyes, ferric ion, catalytic regeneration, kinetics </jats:p> |
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| author | Ahmed, S., Saha, S.K. |
| author_facet | Ahmed, S., Saha, S.K., Ahmed, S., Saha, S.K. |
| author_sort | ahmed, s. |
| container_issue | 10 |
| container_start_page | 1896 |
| container_title | Canadian Journal of Chemistry |
| container_volume | 74 |
| description | <jats:p> An electrochemical investigation on five progressively alkylated thiazine dyes in the presence of Fe(III) ions is reported. The theory of the catalytic regeneration mechanism involving an electrode reaction followed by a coupled chemical reaction is applied to derive kinetic parameters of homogeneous reaction. The second-order rate constant for the reaction of thiazine leucodyes with Fe(III) ions was found to increase from 0.25 × 10<jats:sup>4</jats:sup> to 1.6 × 10<jats:sup>4</jats:sup> dm<jats:sup>3</jats:sup> mol<jats:sup>−1</jats:sup> s<jats:sup>−1</jats:sup> upon monomethylation and to vary from 0.7 × 10<jats:sup>4</jats:sup> for the dimethyl derivative to 1.4 × 10<jats:sup>4</jats:sup> dm<jats:sup>3</jats:sup>mol<jats:sup>−1</jats:sup> s<jats:sup>−1</jats:sup> for the tetramethyl one. The electron-donating nature as well as the hydrophobic characteristics of the methyl group influence the kinetics of the homogeneous reaction. Key words: cyclic voltammetry, thiazine dyes, ferric ion, catalytic regeneration, kinetics </jats:p> |
| doi_str_mv | 10.1139/v96-213 |
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| imprint | Canadian Science Publishing, 1996 |
| imprint_str_mv | Canadian Science Publishing, 1996 |
| institution | DE-Gla1, DE-Zi4, DE-15, DE-Rs1, DE-Pl11, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-Zwi2, DE-D161 |
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| physical | 1896-1902 |
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| series | Canadian Journal of Chemistry |
| source_id | 49 |
| spelling | Ahmed, S. Saha, S.K. 0008-4042 1480-3291 Canadian Science Publishing Organic Chemistry General Chemistry Catalysis http://dx.doi.org/10.1139/v96-213 <jats:p> An electrochemical investigation on five progressively alkylated thiazine dyes in the presence of Fe(III) ions is reported. The theory of the catalytic regeneration mechanism involving an electrode reaction followed by a coupled chemical reaction is applied to derive kinetic parameters of homogeneous reaction. The second-order rate constant for the reaction of thiazine leucodyes with Fe(III) ions was found to increase from 0.25 × 10<jats:sup>4</jats:sup> to 1.6 × 10<jats:sup>4</jats:sup> dm<jats:sup>3</jats:sup> mol<jats:sup>−1</jats:sup> s<jats:sup>−1</jats:sup> upon monomethylation and to vary from 0.7 × 10<jats:sup>4</jats:sup> for the dimethyl derivative to 1.4 × 10<jats:sup>4</jats:sup> dm<jats:sup>3</jats:sup>mol<jats:sup>−1</jats:sup> s<jats:sup>−1</jats:sup> for the tetramethyl one. The electron-donating nature as well as the hydrophobic characteristics of the methyl group influence the kinetics of the homogeneous reaction. Key words: cyclic voltammetry, thiazine dyes, ferric ion, catalytic regeneration, kinetics </jats:p> Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode Canadian Journal of Chemistry |
| spellingShingle | Ahmed, S., Saha, S.K., Canadian Journal of Chemistry, Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode, Organic Chemistry, General Chemistry, Catalysis |
| title | Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_full | Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_fullStr | Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_full_unstemmed | Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_short | Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| title_sort | electrochemical study of the reaction between progressively alkylated thiazine leucodyes and fe(iii) on a glassy carbon electrode |
| title_unstemmed | Electrochemical study of the reaction between progressively alkylated thiazine leucodyes and Fe(III) on a glassy carbon electrode |
| topic | Organic Chemistry, General Chemistry, Catalysis |
| url | http://dx.doi.org/10.1139/v96-213 |