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The Studies Of Ferrocene Series Surfactants And The Host-guest Molecule Assciatio Behaviors

Posted on:2012-08-05Degree:MasterType:Thesis
Country:ChinaCandidate:M LiuFull Text:PDF
GTID:2211330338469228Subject:Physical chemistry
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With the development of science, people deeply understand the function of material system which is not always entirely depends only on the nature of its constituent elements, but also on the high-level structure. Ordered structures in nature aggregates many senior composition dependence of weak intermolecular interaction, such as hydrophobic interactions, electrostatic interactions, hydrogen bonding, van der Waals, aromatic ring stacking and so on. By the synergy of the weak force between these molecules building the many colorful beings, and energy consumption is far less than through covalent synthesis of new substances, the use of weak intermolecular forces to build a complex function of aggregate bionics important research direction. Because of these significant, new surfactant molecules aggregate to form, function and regulation and the weak interactions between molecules become hot spots of natural science researchBased on the previous studies, the ferrocene surfactants have been designed and synthesized. The interaction between the ferrocene surfactants and host compound in the water have been investigated. These results help further reveal the basic characteristics of weak interaction (the role of non-covalent bonds) and host-guest mechanism in new systems, the process of enzyme efficiency and its substrate specificity between the nature of non-covalent interactions.This work is a part of the subjuct which is funded by the National Natural Science Fund(NO. 20963007). The main contents and the results of this paper are as follows:The first chapter introduces the domestic and international aspects in surfactant research and the interaction between p-Cyclodextrin and the ferrocene surfactants research and research status.ChapterⅡThe ferrocene surfactants have been designed and synthesized, t he composition and structures of the products have been determined and chara cterizedChapterⅢEffect ofβ-Cyclodextrin on micellization of the ferrocene surf actant in aqueous solution. The results show that,β-cyclodextrin and surfactant molecules there is a strong role of the envelope,β-cyclodextrin molecules par tially shielding the cavity structure of surfactant molecules in the long carbon-c hain contacts with the surrounding medium, in To some extent diminished thei r micelle formation; FcUTAB withβ-cyclodextrin molecules form a stable phy sical envelope, the envelope material tends to 1:1 envelope (ie, aβ-cyclodextri n molecules combined with a FcUTAB);β-cyclodextrin and surfactant strong hydrophobic interaction between molecules, should be the main object of the r ole of each envelope the main driving force.Chapter IV Electrochemical methods (cyclic voltammetry) ofβ-cyclodextrin on ferrocene surfactant molecules enveloping behavior. Studies have shown th at ferrocene surfactant system, its CV curves of redox current ratio close to 1: 1, the peak potential difference of about 60mV, and the peak current is linear with the scan rate, showing a good Reversible cyclic voltammetry, can be us ed to study the behavior of the envelope of subject and object;β-cyclodextrin and ferrocene, respectively, the surface active agent FcATAB, FcHTAB, FcUT AB the formation of a stable 1:1 molecular envelope of material, including Ne twork constants were 8.99×103L/mol,5.46×103L/mol,1.4×103L/mol.Chapter V The host-guest association behavior between CB[7] and Fc-C≡C-Ph-Bipridine was studied by UV spectra and cyclic voltammetry. The ratios of the complex and the association constant we recalculated. The results showed that a stable inclusion complex was formed between CB[7] and Fc-C≡C-Ph-Bipridine. with the 1:1 molar ratio of the inclusion complex, and the association constant reached 4.8×105 L/mol.ChapterⅥbriefly Outline in this paper's conclusions and outlook.
Keywords/Search Tags:β-cyclodextrin, The Ferrocene Furfactants, Ferrocene derivatives, Cucurbituril[7], Host-guest interaction
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