Vibrational spectroscopic studies of mesna and dimesna.
Raman, and infrared spectra of mesna and dimesna have been collected in the present spectroscopic studies. Based on the group frequencies, relative intensities and Raman depolarization measurements, some vibrational assignments have been suggested. For both mesna and dimesna, at least two rotational conformers have been identified. Adsorption behavior was investigated from the recorded surface-enhanced Raman scattering (SERS) spectra. It was found that both mesna and dimesna adsorbed as thiolate on silver sol particles with the cleavage of the S-H bond in mesna and the S-S bond in dimesna. For the adsorbed thiolate, two conformers existed in the adsorption state.
Li
Ying-Sing
YS
Department of Chemistry, The University of Memphis, Memphis, TN 38152, USA. yingli@postoffice.memphis.edu
Wang
Yu
Y
Church
Jeffrey S
JS
Garzena
Fabio
F
Zhang
Zanxing
Z
An
Danqui
D
D000327:Adsorption; D006859:Hydrogen / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D015080:Mesna / Q000031:analogs & derivatives* / Q000737:chemistry*; D008968:Molecular Conformation; D020011:Protective Agents / Q000737:chemistry; D013053:Spectrophotometry / Q000379:methods*; D013055:Spectrophotometry, Infrared / Q000379:methods; D013059:Spectrum Analysis, Raman / Q000379:methods; D013455:Sulfur / Q000737:chemistry
D020011:Protective Agents; C027032:2,2'-dithiodiethanesulfonic acid; D013455:Sulfur; D006859:Hydrogen; D015080:Mesna