کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5417651 | 1506928 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
DFT studies on redox properties of copper-chelating cuprizone: Unusually high-valent copper(III) state
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: DFT studies on redox properties of copper-chelating cuprizone: Unusually high-valent copper(III) state DFT studies on redox properties of copper-chelating cuprizone: Unusually high-valent copper(III) state](/preview/png/5417651.png)
چکیده انگلیسی
We investigated the structures and redox properties of copper-chelating cuprizone using DFT-B3LYP calculations to gain insights into its toxicity causing neurodegeneration similar to lesions in prion diseases. We found that the copper-cuprizone complex has redox potentials of the Cu(III)/Cu(II) couple that range from â0.05 to +0.98Â V (vs. normal hydrogen electrode), which are low enough to stabilize tri-valent copper(III) states. The resulting unusually high-valent copper(III) can be involved in cytotoxiciy to disrupt copper metabolism and/or to cause oxidative stress. This study on the redox behavior of copper-chelating cuprizone may provide not only an insight into its copper(III)-mediated toxicity but also a key to understanding for the pathogenesis of prion diseases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure: THEOCHEM - Volume 895, Issues 1â3, 15 February 2009, Pages 52-56
Journal: Journal of Molecular Structure: THEOCHEM - Volume 895, Issues 1â3, 15 February 2009, Pages 52-56
نویسندگان
Norifumi Yamamoto, Kazuo Kuwata,