کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6618371 | 459654 | 2012 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis, characterization and electrochemical investigation of hetaryl chromium(0) aminocarbene complexes
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
In this contribution a new series of aminocarbene complexes of chromium(0) was synthesized, where the originally used phenyl substituent in the compound I pentacarbonyl[(N,N-dimethylamino)(phenyl)carbene]chromium(0), was replaced by various five-membered heteroaromatic rings: furan (II), thiophene (III) and N-Me-pyrrol (IV), attached either by their position 2 or 3 (Fig. 1). The compounds were characterized by 1H and 13C NMR and elemental analysis. In the second part of this work an electrochemical investigation in acetonitrile followed in order to understand more deeply the oxidation and reduction process and to analyze the relative contribution of inductive and mesomeric effects of the heterocycles to the reduction of the chromium aminocarbenes. Their electrochemical behavior was compared with that obtained for the phenyl derivative I, the interpretation was correlated with quantum chemical calculations and the differences were discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 82, 1 November 2012, Pages 470-477
Journal: Electrochimica Acta - Volume 82, 1 November 2012, Pages 470-477
نویسندگان
Radka Metelková, TomáÅ¡ Tobrman, Hana Kvapilová, Irena Hoskovcová, JiÅà LudvÃk,