کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9607577 | 44794 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic field effects and CIDEP due to the d-type triplet mechanism in intra-molecular reactions
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In this review, we present an overview of magnetic field effects (MFEs) and chemically induced electron polarization (CIDEP) due to the d-type triplet mechanism (TM) in intra-molecular reactions of photo-excited triplet molecules. Because the conditions for such MFEs and CIDEP are rather strict, they had been observed only for a few types of radicals generated through triplet exciplexes of some excited dye molecules with heavy-atom substituted electron donors in polar solvents, until quite recently. Under such circumstances, Paul's group and that of the present authors have recently found MFEs and CIDEP due to the d-type TM for intra-molecular reactions from photo-excited triplet states of azoalkanes and triarylphosphines, respectively, irrespective of solvent polarity. These studies have extended the research field of the d-type TM from very limited reactions through triplet exciplexes to more general intra-molecular ones of triplet molecules. In the present review, we would like to summarize the various mechanisms for MFEs and CIDEP, to explain a theory for MFEs and CIDEP due to the d-type TM, and to present the new advances obtained experimentally by the two groups.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology C: Photochemistry Reviews - Volume 6, Issue 1, April 2005, Pages 25-36
Journal: Journal of Photochemistry and Photobiology C: Photochemistry Reviews - Volume 6, Issue 1, April 2005, Pages 25-36
نویسندگان
Hisaharu Hayashi, Yoshio Sakaguchi,