کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1406999 1501885 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Weak interactions in barbituric acid derivatives. Unusually steady intermolecular organic “sandwich” complexes. π–π Stacking versus hydrogen bonding interactions
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Weak interactions in barbituric acid derivatives. Unusually steady intermolecular organic “sandwich” complexes. π–π Stacking versus hydrogen bonding interactions
چکیده انگلیسی

The 4-methoxy-6,6-dimethyl-5,6,7,8-tetrahydro[1,3]dioxolo[4,5-g]isoquinolin-6-ium (1) and 2-(1H-indol-3-yl)-1-ethanaminium (tryptaminium) (2) salts of 1,3-dimethyl-2,4,6-trioxoperhydro-pyrimidine-5-spiro-6′-{4′-methoxy-7′-(1,3-dimethyl-2,4,6-trioxoper-hydropyrimidin-5-yl)-5′,6′,7′,8′-tetrahydro[1,3]dioxolo[4,5-g]naphthalene} (3) have been prepared and their structures have been investigated by single-crystal X-ray diffraction analysis. It has been found on the basis of the crystal packing arrangement as well as physical and chemical properties that derivatives 1 and 2 form unusually steady intermolecular sandwich-like complexes both in the crystal and in solution, which are stabilized by weak CH…n(OC) hydrogen bonds and π–π stacking. The interplay between the intermolecular π–π stacking and strong NH…O hydrogen bond interactions and its influence on the “sandwich” structures of 1 and 2 are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 878, Issues 1–3, 30 April 2008, Pages 40–49
نویسندگان
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