The solvent trapping or co-adsorbing effect during the self-assembly monolayer studied by surface-enhanced Raman scattering |
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| Institution: | 1. Research Center of Surface and Interface Chemistry and Engineering Technology, Nanjing University, Nanjing 210093, PR China;2. State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Nanjing University, Nanjing 210093, PR China;3. Department of Chemistry, Nanjing University, Nanjing 210093, PR China;1. Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China;2. Department of Chemistry, Lishui University, Lishui City 323000, PR China;1. Yildiz Technical University, Faculty of Science and Letters, Department of Physics, 34210, Esenler, Istanbul, Turkey;2. Istanbul Technical University, Faculty of Science and Letters, Department of Physics Engineering, 34469, Maslak, Istanbul, Turkey;3. National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan;1. Department of Chemistry, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea;2. Chemical Materials Evaluation and Research Base (CEREBA), Higashi 1-1-1, AIST Central 5-2, Tsukuba, Ibaraki, 305-8565, Japan;3. Department of Materials Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan;4. Department of Chemical Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, Kanagawa, 226-8503, Japan;5. Institute of Nano Science and Technology, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea;1. Institute for Crystallography and Structural Physics (ICSP), Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany;2. Forschungszentrum Jülich GmbH, Jülich Centre for Neutron Science (JCNS), Outstation at FRM II, 85747 Garching, Germany;3. MAX IV Laboratory, Lund University, P.O. Box 118, SE-22100 Lund, Sweden;4. German Engineering Materials Science Centre (GEMS), Helmholtz Zentrum Geesthacht (HZG), Max-Plank-Straße 1, 21502 Geesthacht, Germany;5. Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, 85747 Garching, Germany;1. Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, PR China;2. School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi''an, 710062, PR China |
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| Abstract: | The possibility of solvent molecules being trapped within the monolayer interior during the self-assembly of 2,5-dimercapto-1,3,4-thiadiazole (DMTD) molecules from alcoholic solution, or co-adsorbing together with the solute molecules onto the silver surface was verified by means of surface-enhanced Raman scattering (SERS). Variations of the relative intensity of the solvent bands to the concentrations of the solution were investigated. To a certain range of the concentration, the smaller the concentration is, the larger the relative intensity of the solvent bands is. A new method for obtaining the SERS spectra of the organic compounds that are insoluble in water was developed in our laboratory, which also provides further evidence for the solvent trapping or co-adsorbing effect. |
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