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 onedimensional polymer chain on the copper surface.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Gajendragad, M. R., Agarwala, U., 1,3,4-thiadiazole-2,5-dithiol as a complexing agent (III)—complexes of Cu(I), Zn(II), Ag(I), Cd(II), Tl(I), Pb(II), Pd(0), & Pt(0), Indian J. Chem., 1975, 13(7): 697.
Bhattacharya, A., Singh, T., Verma, V. K. et al., 1,3,4-thiadiazoles as potential EP additives—a tribological evaluation using a fourball test, Tribol. Int., 1995, 28(3): 189.
Ren, T. H., Xue, Q. J., Wang, H. Q., A study of S-(1H-benzotriazol-1-yl) methyl N,N-dialkyldithiocarbanmates as novel multifunctional oil additives, Wear, 1994, 172(1): 59.
Fields, E. K., Preparation of lubricating oil additives from dimercaptothiadiazole, Ind. Eng. Chem., 1957, 49(9): 1361.
Hamblin, P. C., A Review: Ashless antioxidants, copper deactiva-tors and corrosion inhibitors: Their use in lubricating oils, in the 5th International Colloquium Additives for Lubricant Operational Fluids, 1986, Ostfukdernm: Wilfried J. Tech. Akad. Esslingen.
Pope, J. M., Sato, T., Shouji, E. et al., Spectroscopic identification of 2,5-dimercapto-1,3,4-thiadiazole and its lithium salt and dimer forms, J. Power Sources, 1997, 68(2): 739.
Shouji, E., Yokeyama, Y., Pope, J. M. et al., Electrochemical and spectroscopic investigation of the influence of acid-base chemistry on the redox properties of 2,5-dimercapto-1,3,4-thiadiazole, J. Phys. Chem., 1997, 101(15): 2861.
Garrell, R. L., Schultz, R., Surfaceenhanced Raman spectroscopy using nonaqueous colloidal silver, J. Colloid & Interf. Sci., 1985, 105(2): 483.
About this article
Cite this article
Huang, L., Shen, J., Ren, J. et al. The adsorption of 2,5-dimer-capto-1,3,4-thiadiazole (DMTD) on copper surface and its binding behavior. Chin.Sci.Bull. 46, 387–389 (2001). https://doi.org/10.1007/BF03183270
- 2,5-dimercapto-1,3,4-thiadiazole (DMTD)
- surface-enhanced Raman scattering (SERS)
- adsorption and binding