کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10557390 968891 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
1H NMR study of inclusion compounds of phenylurea derivatives in β-cyclodextrin
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
1H NMR study of inclusion compounds of phenylurea derivatives in β-cyclodextrin
چکیده انگلیسی
Proton nuclear magnetic resonance spectroscopy (1H NMR), which has become an important tool for the study “in situ” of β-cyclodextrin (β-CD) complexes, was used to study and structurally characterize the inclusion complexes formed between β-CD and isoproturon, fenuron, monuron and diuron. The high variation of the chemical shifts from the proton located inside the cavity (H-3, H-5 and H-6) coupled with the non variation of the one located outer sphere of the β-CD (H-1, H-2 and H-4) provided clear evidence of the inclusion phenomena. Two-dimensional rotating frame Overhauser effect spectroscopy (ROESY) experiments were carried out to further support the proposed inclusion mode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 61, Issue 6, April 2005, Pages 1051-1057
نویسندگان
, , , , , ,