Dupuy N, Barbry D, Bria M, Marquis S, Vrielynck L, Kister J. 1H NMR study of inclusion compounds of phenylurea derivatives in beta-cyclodextrin.
Spectrochim Acta A Mol Biomol Spectrosc 2005;
61:1051-1057. [PMID:
15741102 DOI:
10.1016/j.saa.2004.04.031]
[Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2004] [Accepted: 04/07/2004] [Indexed: 05/24/2023]
Abstract
Proton nuclear magnetic resonance spectroscopy ((1)H NMR), which has become an important tool for the study "in situ" of beta-cyclodextrin (beta-CD) complexes, was used to study and structurally characterize the inclusion complexes formed between beta-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 beta-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.
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