| Recognition-improved monolayer formation on air-water interface |
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| 作者姓名： | CHAI Xiang-Dong CHEN Si-Guang ZHOU Yong-Liang ZHAO Ying-Ying LI Tie-Jin |
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| 作者单位： | CHAI，Xiang-Dong CHEN，Si-Guang ZHOU，Yong-Liang ZHAO，Ying-Ying LI，Tie-JinDepartment of Chemistry，Jilin University，Changchun，Jilin 130021，ChinaLEHN，Jean-MarieChimie des Interactions Moleculaires，College de France，11 Place Marcelin Berthelot，75005 Paris，France |
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| 摘 要： | Molecular recognition mechanism was introduced into the monolayer formation of two barbituric derivatives, B1 and B2, on a series of melamine derivatives containing water sub-phase. The recognition pattern was found that each barbituric(or melamine) group forms 3-fold H-bonds on its two edges, respectively, with two of its neighboring melamine(barbituric) cores in the ratio of 1:1 on air-water interface. The area per molecule in this pattern is about 60-65 A2 for both Bl and B2. Such recognition improves the monolayer formation of Bl by increasing the collapse pressure around 20 mN/M and modulates the intermolecular distance of B2 in monolayer. These effects should be quite meaningful for both theoretical research and practical application of Langmuir-Blodgett films, especially.
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Recognition-improved monolayer formation on air-water interface |
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| CHAI,Xiang-Dong CHEN,Si-Guang ZHOU,Yong-Liang ZHAO,Ying-Ying LI,Tie-Jin.Recognition-improved monolayer formation on air-water interface[J].Chinese Journal of Chemistry,1995,13(5):385-390. |
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| Authors: | CHAI Xiang-Dong CHEN Si-Guang ZHOU Yong-Liang ZHAO Ying-Ying LI Tie-Jin |
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| Institution: | CHAI,Xiang-Dong CHEN,Si-Guang ZHOU,Yong-Liang ZHAO,Ying-Ying LI,Tie-JinDepartment of Chemistry,Jilin University,Changchun,Jilin 130021,ChinaLEHN,Jean-MarieChimie des Interactions Moleculaires,College de France,11 Place Marcelin Berthelot,75005 Paris,France |
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| Abstract: | Molecular recognition mechanism was introduced into the monolayer formation of two barbituric derivatives, B1 and B2, on a series of melamine derivatives containing water sub-phase. The recognition pattern was found that each barbituric(or melamine) group forms 3-fold H-bonds on its two edges, respectively, with two of its neighboring melamine(barbituric) cores in the ratio of 1:1 on air-water interface. The area per molecule in this pattern is about 60-65 A2 for both Bl and B2. Such recognition improves the monolayer formation of Bl by increasing the collapse pressure around 20 mN/M and modulates the intermolecular distance of B2 in monolayer. These effects should be quite meaningful for both theoretical research and practical application of Langmuir-Blodgett films, especially. |
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| Keywords: | Monolayer molecular recognition melamine derivatives barbituric acid derivatives |
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