کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1403054 1501777 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Solid-state structure of methyl 2,4,6-tri-O-acetyl-3-O-(2,3,4,6-tetra-O-acetyl-β-d-glucopyranosyl)-β-d-galactopyranoside and methyl 3,4,6-tri-O-acetyl-2-O-(2,3,4,6-tetra-O-acetyl-β-d-glucopyranosyl)-β-d-galactopyranoside
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Solid-state structure of methyl 2,4,6-tri-O-acetyl-3-O-(2,3,4,6-tetra-O-acetyl-β-d-glucopyranosyl)-β-d-galactopyranoside and methyl 3,4,6-tri-O-acetyl-2-O-(2,3,4,6-tetra-O-acetyl-β-d-glucopyranosyl)-β-d-galactopyranoside
چکیده انگلیسی

Comprehensive structural analyses of methyl 2,4,6-tri-O-acetyl-3-O-(2,3,4,6-tetra-O-acetyl-β-d-glucopyranosyl)-β-d-galactopyranoside (1) and methyl 3,4,6-tri-O-acetyl-2-O-(2,3,4,6-tetra-O-acetyl-β-d-glucopyranosyl)-β-d-galactopyranoside (2) have been performed. The analyses combined experimental and theoretical methods: single-crystal and powder X-ray diffraction and 13C CP/MAS NMR spectroscopy served as experimental techniques, whereas the grid search of the conformers of disaccharides implemented by genetic algorithm was chosen as the theoretical method. One of the calculated conformers of 1 fits the experimental structure very well. Although the two best conformations of 2 are of similar energy, their structures are significantly different. Probably therefore 2 cannot form any crystallographic forms and is amorphous.


► The applied theoretical method can predict the solid-state structure of the title disaccharides.
► The grid search of conformers implemented by genetic algorithm has served as the theoretical method.
► XRD, PXRD, and solid-state NMR have verified the prediction.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1037, 10 April 2013, Pages 49–56
نویسندگان
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