Research Article
Host-Guest Interaction between Herbicide Oxadiargyl and Hydroxypropyl-
β
-Cyclodextrin
Table 2
1H NMR chemical shift (δ) data of OXA, HP-β-CD, and OXA/HP-β-CD inclusion complex.
|  |  |
| H
Assignment | δ OXA
(CH3OD) | δ HP--CD
(CH3OD) | δ OXA/HP--CD
(CH3OD) | Δδ |
| | t-Butyl | 1.368 (s) | — | 1.371 | 0.003 | | CH | 4.879 (s) | — | 4.882 | 0.003 | | H2 | 7.676 (s) | — | 7.679 | 0.010 | | H1 | 7.421 (s) | — | 7.431 | 0.003 | | H1′ | — | 5.048 (m) | 5.042 | −0.006 | | H3′ | — | 3.967 (s) | 3.957 | −0.010 | | H5′ | — | 3.831 (s) | 3.819 | −0.012 | | H6′ | — | 3.727 (s) | 3.716 | −0.011 | | H2′ | — | 3.522 (m) | 3.517 | −0.005 | | H4′ | — | 3.413 (m) | 3.411 | −0.002 |
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