کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1389165 982848 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Crystal structure determination of the β-cyclodextrin–p-aminobenzoic acid inclusion complex from powder X-ray diffraction data
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Crystal structure determination of the β-cyclodextrin–p-aminobenzoic acid inclusion complex from powder X-ray diffraction data
چکیده انگلیسی

The 1:1 inclusion complex of β-cyclodextrin and p-aminobenzoic acid was prepared and characterized by TG-DTA. The crystal structure of the complex was solved directly from powder X-ray diffraction data using the direct space approach and refined using Rietveld refinement techniques. The complex crystallizes in monoclinic P21 space group, with unit cell parameters a = 20.7890 Ǻ, b = 10.2084 Ǻ, c = 15.1091 Ǻ, β = 110.825°, V = 2997 Ǻ3. The amino group is located at the wide side of the β-cyclodextrin cavity, forming hydrogen bonds with β-cyclodextrin, and the carboxyl group is located at the narrow side. The crystallographic data obtained from powder diffraction data were compared with the single crystallographic data, and the result shows that solving crystal structure of cyclodextrins inclusion complexes of such complexity is accessible to powder diffractionists to some extent.

Crystal structure of β-cyclodextrin–p-aminobenzoic acid inclusion complex was directly determined from powder X-ray diffraction data using direct space approach.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Research - Volume 346, Issue 7, 15 May 2011, Pages 986–990
نویسندگان
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