Theoretical and Electrochemical Characterization of <i>δ</i>-RuCl<sub>2</sub>(Nazpy)<sub>2</sub>: Application to Oxidation of D-Glucose — Oak Academic Publishing
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Theoretical and Electrochemical Characterization of <i>δ</i>-RuCl<sub>2</sub>(Nazpy)<sub>2</sub>: Application to Oxidation of D-Glucose
Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, UFR-SFA, Université Nangui-Abrogoua, Abidjan, Cote d’Ivoire
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Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, UFR-SFA, Université Nangui-Abrogoua, Abidjan, Cote d’Ivoire
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Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, UFR-SFA, Université Nangui-Abrogoua, Abidjan, Cote d’Ivoire
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Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, UFR-SFA, Université Nangui-Abrogoua, Abidjan, Cote d’Ivoire
1 Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, UFR-SFA, Université Nangui-Abrogoua, Abidjan, Cote d’Ivoire
2 Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, UFR-SFA, Université Nangui-Abrogoua, Abidjan, Cote d’Ivoire
3 Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, UFR-SFA, Université Nangui-Abrogoua, Abidjan, Cote d’Ivoire
4 Laboratoire de Thermodynamique et de Physico-Chimie du Milieu, UFR-SFA, Université Nangui-Abrogoua, Abidjan, Cote d’Ivoire
The heterogenized δ -RuCl 2 (Nazpy) 2 deposited on carbon toray (CT) was studied for the first time as electrochemical catalyst. Before, it was characterized by visible-ultraviolet spectra and theoretically by TDDFT method at B3LYP/Lanl2DZ level. It displayed an MLCT t 2g e g → π* transition where t 2g e g due to the structure of Nazpy that considerably reduces energy between d AOs of Ru represents the HOMO of the complex and π* is identified as the LUMO. Electrochemistry study shows two redox ranges in both negative and positive sides of the potential. The positive side that corresponds to the couple Ru IV /Ru III of catalyst appears to be active for oxidation of D-glucose in carbonate buffer with a high turnover. Therefore, Keto-2-gluconic and gluconic acids were the two main products obtained with respectively 80% and 17.6% of selectivity. Moreover, a small amount of tartaric and glycol acids coming from the c-c bond cleavage due to non-protection of the anomeric carbon of D-glucose were also observed.
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