کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7810653 1501766 2013 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Peculiarities of molecular structure of 1-vinylimidazole: High resolution NMR study
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Peculiarities of molecular structure of 1-vinylimidazole: High resolution NMR study
چکیده انگلیسی
The peculiarities of molecular structure of 1-vinylimidazoles were studied using 1Н and 13С NMR spectra of its complexes. Mechanisms of delocalization of unpaired electron spin density in the complex CoCl2⋅4(1-vinylimidazole) were revealed. Characteristic features of 1-vinylimidazole coordination with (C2H5)3SnCl were established. Unlike paramagnetic cobalt complex, the structure of VIM diamagnetic complex with triethylhalogenstananne R represents a trigonal bipyramid. The Sn atom in this complex has sp3d-hybridization and three alkyl moieties trend towards coplanarity interacting with sp2-orbitals of tin. The long-range spin-spin interaction between protons of 1-vinylimidazole and the vinyl group coupled with the pyrrole nitrogen N1, typical for coplanar arrangement the imidazole cycle and vinyl moiety was found.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1048, 24 September 2013, Pages 210-213
نویسندگان
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