Inclusion interaction of cyclodextrins and 2,4-dichlorprop methyl ester enantiomers by UV spectra
The enantioselective inclusion interaction of various cyclodextrins (β-CD, PM-β-CD, CM-β-CD) with R/S-2, 4-dichlorprop methyl ester (R/S-2, 4-D) was studied by UV spectra technique. The results show that all cyclodextrins formed 1∶1 inclusion complexes with 2, 4-D, the order of binding constants of...
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| Language: | English |
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Zhejiang University Press
2008-01-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2008.01.008 |
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| author | LI Hong LIU Hui-jun WEN Yue-zhong LIU Wei-ping |
| author_facet | LI Hong LIU Hui-jun WEN Yue-zhong LIU Wei-ping |
| author_sort | LI Hong |
| collection | DOAJ |
| description | The enantioselective inclusion interaction of various cyclodextrins (β-CD, PM-β-CD, CM-β-CD) with R/S-2, 4-dichlorprop methyl ester (R/S-2, 4-D) was studied by UV spectra technique. The results show that all cyclodextrins formed 1∶1 inclusion complexes with 2, 4-D, the order of binding constants of three types cyclodextrins and 2, 4-D was K<sub>PM-β-CD</sub>≫K<sub>CM</sub>-β-c<sub>D</sub>>K<sub>β-CD</sub>. Between 298.15 K and 318.15 K, the binding constants decreased as the temperature increased. All Gibbs free energy ΔG, enthalpy change ΔH, and entropy change AS determined were negative, suggesting that the inclusion interaction was exothermic and spontaneously occurred by balance of enthalpy driven and entropy opposed. R-2, 4-D was easier enclosed than S-2, 4-D by the same kind of cyclodextrins and the order of K<sub>R</sub>/Ks was accordance with the order of binding constants. |
| format | Article |
| id | doaj-art-90f5da9fd6b34dacab99dc2c62642b97 |
| institution | DOAJ |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-90f5da9fd6b34dacab99dc2c62642b972025-08-20T02:52:49ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552008-01-0134505610.3785/j.issn.1008-9209.2008.01.00810089209Inclusion interaction of cyclodextrins and 2,4-dichlorprop methyl ester enantiomers by UV spectraLI HongLIU Hui-junWEN Yue-zhongLIU Wei-pingThe enantioselective inclusion interaction of various cyclodextrins (β-CD, PM-β-CD, CM-β-CD) with R/S-2, 4-dichlorprop methyl ester (R/S-2, 4-D) was studied by UV spectra technique. The results show that all cyclodextrins formed 1∶1 inclusion complexes with 2, 4-D, the order of binding constants of three types cyclodextrins and 2, 4-D was K<sub>PM-β-CD</sub>≫K<sub>CM</sub>-β-c<sub>D</sub>>K<sub>β-CD</sub>. Between 298.15 K and 318.15 K, the binding constants decreased as the temperature increased. All Gibbs free energy ΔG, enthalpy change ΔH, and entropy change AS determined were negative, suggesting that the inclusion interaction was exothermic and spontaneously occurred by balance of enthalpy driven and entropy opposed. R-2, 4-D was easier enclosed than S-2, 4-D by the same kind of cyclodextrins and the order of K<sub>R</sub>/Ks was accordance with the order of binding constants.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2008.01.008cyclodextrins2, 4-dichlorprop methyl esterinclusion interactionUV spectra |
| spellingShingle | LI Hong LIU Hui-jun WEN Yue-zhong LIU Wei-ping Inclusion interaction of cyclodextrins and 2,4-dichlorprop methyl ester enantiomers by UV spectra 浙江大学学报. 农业与生命科学版 cyclodextrins 2, 4-dichlorprop methyl ester inclusion interaction UV spectra |
| title | Inclusion interaction of cyclodextrins and 2,4-dichlorprop methyl ester enantiomers by UV spectra |
| title_full | Inclusion interaction of cyclodextrins and 2,4-dichlorprop methyl ester enantiomers by UV spectra |
| title_fullStr | Inclusion interaction of cyclodextrins and 2,4-dichlorprop methyl ester enantiomers by UV spectra |
| title_full_unstemmed | Inclusion interaction of cyclodextrins and 2,4-dichlorprop methyl ester enantiomers by UV spectra |
| title_short | Inclusion interaction of cyclodextrins and 2,4-dichlorprop methyl ester enantiomers by UV spectra |
| title_sort | inclusion interaction of cyclodextrins and 2 4 dichlorprop methyl ester enantiomers by uv spectra |
| topic | cyclodextrins 2, 4-dichlorprop methyl ester inclusion interaction UV spectra |
| url | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2008.01.008 |
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