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The adsorption of 2,5-dimer-capto-1,3,4-thiadiazole (DMTD) on copper surface and its binding behavior |
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| Authors: | Ling Huang Jian Shen Jun Ren Qingjin Meng Tsing Yu |
| Institution: | (1)Research Center of Surface and Interface Chemistry and Engineering Technology, Nanjing University, Nanjing 210093 ,China; (2)State Key Laboratory of Coordination Chemistry, Coordination Chem- istry Institute, Nanjing University, Nanjing 210093 ,China; (3)Department of Chemistry, Nanjing University, Nanjing 210093 ,China |
| Abstract: | The interaction mechanism of 2,5-dimercapto- 1,3,4-thiadiazole (DMTD) on copper surface was studied by surface-enhanced Raman scattering (SERS), infrared (IR) and X-ray photoelectron spectroscopy (XPS) techniques. The SERS spectra were obtained. We found that DMTD bound with the copper via its two-excocyclic mercapto groups. The monosulphide salt was formed. At the same time, DMTD coordinated with the Cu+ ion through the excocyclic mercapto groups and polymerized via the Cu+ ion into a one- dimensional polymer chain on the copper surface. |
| Keywords: | 2 5-dimercapto-1 3 4-thiadiazole (DMTD) surface-en- hanced Raman scattering (SERS) adsorption and binding |
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