کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5416545 1506892 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Towards a rational design of enantioselective heterogeneous catalysts: Modeling of chiral organotin precursors
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Towards a rational design of enantioselective heterogeneous catalysts: Modeling of chiral organotin precursors
چکیده انگلیسی
In this work, the modeling of organotin compounds of general formula Men-Sn-R3 (Men = menthyl, R = alkyl or alkoxyalkyl) is carried out. These compounds can be employed as precursors for obtaining enantioselective heterogeneous catalysts, prepared by means of Surface Organometallic Chemistry on Metals techniques. Both Molecular Mechanics and Molecular Dynamics, as well as Density Functional Theory (DFT), were used to give an insight into the relative stability of the Sn-C bonds of several different organotin compounds. The calculations carried out on the molecules Men-Sn-(iso-Bu)3 and Men-Sn-((1-OCH3)-Et)3 showed that if these molecules are used as precursor compounds to prepare heterogeneous organobimetallic catalysts, the probability of losing the menthyl group in a dissociation process is lower, leading to a better performance of the resulting catalysts, in terms of enantiomeric excess.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure: THEOCHEM - Volume 953, Issues 1–3, 15 August 2010, Pages 91-97
نویسندگان
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