کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4907636 | 1426574 | 2017 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical study of the interactions between anionic species of menadione and alkylated nucleobases in dimethylsulfoxide
ترجمه فارسی عنوان
مطالعه الکتروشیمیایی تعاملات بین گونه های آنیونی منادیون و پایه های آلکالیدی در دی متیل سولفوکسید
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
The electrochemical behavior of menadione reduction (MQ) in the presence of alkylated derivatives of the following nucleobases is reported for the first time in the present work: 9-nonyladenine (NAH), 1-nonylthymine (NTH), 1-nonylcytosine (NCH), and 9-phenylethylguanine (PEGH). Through voltammetric simulation, it was possible to characterize the MQ reduction mechanisms in the presence of NAH and NCH, including the hydrogen-bonding association between reduced species of menadione and nucleobases. In the case of the NAH nucleobase, the best fit between the simulated and the experimental voltammograms was achieved when a comproportionation reaction involving MQ2Â â(NAH) and MQ is considered. The analysis of MQ voltammograms with different NTH concentrations led to the formation of an MQ.â(NTH) association complex, and the concerted reduction and deprotonation of MQ.â(NTH) resulted in the protonated species MQHâ, in agreement with the literature. Finally, in the case of the reduction of MQ with PEGH, the voltammetric response, evinced the protonation process of the semiquinone and confirmed a second-order disproportionation mechanism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 801, 15 September 2017, Pages 104-113
Journal: Journal of Electroanalytical Chemistry - Volume 801, 15 September 2017, Pages 104-113
نویسندگان
Pablo D. Astudillo-Sánchez, Daniel Morales-MartÃnez, Analilia Sánchez, Gilberto Rocha-Ortiz, Magali Salas-Reyes,