کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5376941 | 1389375 | 2006 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Non-innocent electrolyte effects on bimolecular pseudo-self-exchange reactions of ruthenium ammine complexes: Evidence for electron-transfer catalysis in H-bonded ternary assemblies
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The kinetics of bimolecular pseudo-self-exchange reactions such as that between pentaammine(pyridine)ruthenium(II) and pentaammine(3-fluoropyridine)ruthenium(III) shown below,(NH3)5RuII(py)2++(NH3)5RuIII(3-Fpy)3+âkex(NH3)5RuIII(py)3++(NH3)5RuII(3-Fpy)2+reveal a novel form of non-covalently mediated electron transfer over distance when salts of non-innocent electrolytes such as the conjugated dicarboxylic acid anions trans,trans-muconate2â or terephthalate2â are added to the solution. The kinetic accelerations are distinct from those seen with simple electrolytes such as KCl or CaCl2, and are thus outside the realm of classical electrolyte effects described by the Debye-Huckel theory of ion atmospheres. Kinetic simulations are presented, and the rate acceleration is interpreted in the context of possible superexchange-type interactions taking place in hydrogen-bonded ternary (or higher) association complexes which create new kinetic pathways for electron transfer over distance in aqueous solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 326, Issue 1, 11 July 2006, Pages 43-53
Journal: Chemical Physics - Volume 326, Issue 1, 11 July 2006, Pages 43-53
نویسندگان
Jeff Christian Curtis, Mayuko Inagaki, Sam J. Chun, Vahid Eskandari, Xining Luo, Zheng N. Pan, Uma Sankararaman, Gina E. Pengra, Jiahua Zhou, Philip Hailey, Jeanny Laurent, Daniel Utalan,