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Electrons Transfer Between mercaptoacetic acid and ZnO Nanocrystal Thin Film

Chemical Research in Chinese Universities 2005年第2期21卷 201-204页

作者： SHANGui-ye LUQiang ANLi-min WANGXin BAIYu-bai DepartmentofChemistry dilinUniversityChangchun130023P.R.China／／KeyLaboratoryofExcitedStatePhysicsProcessesChangchunInstituteofOpticsandPhysicsChineseAcademyofSciencesChangchun130021P.R.China DepartmentofChemistry dilinUniversityChangchun130023P.R.China KeyLaboratoryofExcitedStatePhysicsProcesses ChangchunInstituteofOpticsandPhysicsChineseAcademy.ofSciencesChangchun130021P.R.China

ZnO nanoorystals thin film were prepared by means of the self-assembly mothed. The complex films of mercaptoacetic acid(MPA) and ZnO nanocrystals(ZNCs) were prepared by means of the self-assembly technique. The interaction between the MPA and ZnO within the MPA and ZnO nanocrystal thin film decreases the photoluminescence intensity of the ZnO. The interaction was manifested by the X-ray photoelectron spectra. The intensity change of the photoluminescence of the ZnO is discussed on the basis of taking into account the process of electron transfer on the interface between the ZnO and MPA. The electron transfer of ZnO depends on the distance between the ZnO and MPA.

关键词： ZnO mercaptoacetic acid Electron transfer

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Determination of Surface pKa of Pure mercaptoacetic acid and 2-Mercaptobenzothiazole Mixed Monolayers by Impedance Titration

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Chinese Chemical Letters 2004年第7期15卷 827-830页

作者： GuangHanLU ChuanYinLIU HongYanZHAO WeiLIU LiPingJIANG LingYanJIANG Collegeofchemistry CentralChinaNormalUniversityWuhan430079 DepartmentofChemistry YunyangTeacher＇sCollegeDanjiangkouHubei442700

Interfacial proton transfer reactions of pure mercaptoacetic acid (MA) and 2-mercaptobenzothiazole (Mbz) mixed self-assembled monolayers (SAMs) have been studied using a.c. impedance titration method. The charge-transfer resistance (Rct,) is measured with the monolayer composition and the ionic strength of pH solution. The surface pKa can be obtained by the plots of Rct and pH, the reasons of shifts of surface pKa are also explained.

关键词： A.c.impedance titration mercaptoacetic acid 2-mercaptobenzothiazole self-assembled monolayers surface pKa.

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Synthesis, Characteristic and Antimicrobial Activity of Some New Spiro[indol-thiazolidon-2,4-diones] and Bis(5-fluorospiro[indoline-3,2’-thiazolidine]-2,4’-dione) Probes

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International Journal of Organic Chemistry 2020年第2期10卷 77-87页

作者： Abeer N. Al-Romaizan Department of Chemistry Faculty of Science King Abdul Aziz University Jeddah KSA

In a search for new antimicrobial agents, some new spiro[indol-thiazolidon- 2,4-diones] (6a-c) were synthesized by condensation of 5-substituted isatins 1 with sulfanilamide in MeOH, followed by aroylation with p-nitrobenzoyl chloride in DMF to get compounds 4a-c. Cycloaddition of 4a-c with thioglycolic acid in a dry non-polar solvent (dioxane) gave the targets 6a-c. Also, bis(5-fluorospiro[indoline-3,2’-thiazolidine]-2,4’-dione) (9) was synthesized by condensation of 5-fluoroindoline-2,3-dione with benzene-1,4-diamine (2:1 by mol) in MeOH, which followed by cycloaddition with thioglycolic acid in dioxane gave compound 8. Acylation of the later with 2,2,2-trifluoroacetic anhydride in THF has yielded the target 9. Structures of the products have been deduced from their elemental analysis and spectral data. The in vitro antimicrobial activity of the new systems 6a-c, and 9 was tested.

关键词： Synthesis Spiroindoline-Thiazolidine mercaptoacetic acid Antimicrobial 5-Substituted Isatin Sulfanilamide

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Study on Ionic Organotin Compounds Ⅲ. Synthesis of Five-Coordinated Anionic Tin(Ⅳ) Complexes and Crystal Structure of [ ( i-Pr)2NH2] [ PhSn(μ2-SCH2COO)2]

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有机化学 2003年第Z1期23卷 165-165页

作者： ZHONG Gui-Yun SUN Li-Juan XIE Qing-Lan National Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 National Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071 National Laboratory of Elemento-Organic Chemistry Nankai University Tianjin 300071

　　The study of ionic organotin compounds is of current attention owing to their diversified molecular structures and wide range of applications, such as biological activities[1 ～3] and as catalysts in organic synthesis. [4] Recently, we synthesized some new ionic organotin compounds by dephenylation reaction. [5] In this paper, we continued to study the reaction of mercaptoacetic acid with phenyltin trichloride in the presence of organic base. The reaction equation was as follows:……

关键词： Organotin Compounds organotin compounds biological activities molecular structures mercaptoacetic acid organic synthesis organic base range of

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