“…So, we shall only discuss in this paper results obtained with liquid solutions in order to avoid spectroscopic crystal effects. The spectrum of pure DMSO 2 (solution a) is identical to those already published. − In particular, two strong lines are observed for the symmetric stretching vibrations ν s SC 2 and ν s SO 2 , at 695 and 1130 cm -1 respectively, which can be regarded as practically pure modes. , Moreover, the five bands of medium intensities corresponding to the bending modes of the tetrahedron are detected between 300 and 500 cm -1 . 1 Raman spectra of molten dimethylsulfone solutions a−e at 400 K.…”
The Raman spectra of AlCl(3)-LiCl-dimethylsulfone mixtures with different molar compositions have been recorded as a solid (300 K) and as a melt (400 K). In any case, only AlCl(4)(-) ion lines at 120, 179, and 347 cm(-)(1) were observed; we were unable to detect any other chloroaluminate species. Furthermore, some bands assigned to the Al[(CH(3))(2)SO(2)](3)(3+) octahedral coordination compound are evidence for a high AlCl(3) content.
“…So, we shall only discuss in this paper results obtained with liquid solutions in order to avoid spectroscopic crystal effects. The spectrum of pure DMSO 2 (solution a) is identical to those already published. − In particular, two strong lines are observed for the symmetric stretching vibrations ν s SC 2 and ν s SO 2 , at 695 and 1130 cm -1 respectively, which can be regarded as practically pure modes. , Moreover, the five bands of medium intensities corresponding to the bending modes of the tetrahedron are detected between 300 and 500 cm -1 . 1 Raman spectra of molten dimethylsulfone solutions a−e at 400 K.…”
The Raman spectra of AlCl(3)-LiCl-dimethylsulfone mixtures with different molar compositions have been recorded as a solid (300 K) and as a melt (400 K). In any case, only AlCl(4)(-) ion lines at 120, 179, and 347 cm(-)(1) were observed; we were unable to detect any other chloroaluminate species. Furthermore, some bands assigned to the Al[(CH(3))(2)SO(2)](3)(3+) octahedral coordination compound are evidence for a high AlCl(3) content.
“…3 Dimethyl sulfone is, in addition to methane sulfonic acid, a product of dimethyl sulfide oxidation. The infrared spectrum of (CH 3 ) 2 SO 2 was previously recorded in the crystalline, 4 gas phase [4][5][6] and liquid 6 states. No reports of the matrix isolated spectrum were found.…”
“…are (i) depletions of the assigned[23][24][25][26] bands at 560 cm À1 (SO 2 scissoring), 840-880 cm À1 (C-C, C-H and C-O deformation), 1110 and 1160 cm À1 (S]O and C-O stretching) and 1490 and 1580 cm À1 (C-H deformation and C]C stretching) modes and (ii) a build-up of the bands at 650-690 cm À1 that belong to C-S stretching mode. There is no growth of bands at 3300-3600 cm À1 (O-H stretching) and 1300-1400 cm À1 (OH deformation) indicative of hydroxyl group.…”
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
