Raman spectrum of acetonitrile

Solvent Effects on the Reversible Intercalation of Magnesium‐Ions into V2O5 Electrodes

“…This region contains three important peaks. The peak at 2256 cm −1 is attributed to ν 2 C≡N stretching band of the free ACN in the Mg(ClO 4 ) 2 electrolyte solutions (2254 cm −1 in pure ACN) . The peak at 2294.3 cm −1 exists in all the electrolyte solutions and in the pure ACN spectra also.…”

“…Figure presents the 320–440 cm −1 region for the Raman spectra of the various electrolyte solutions. The peak at 383 cm −1 is attributed to ν 8 C−C≡N asymmetric bending of free ACN (380.5 cm −1 for pure ACN) ,,. The spectrum of the Mg(ClO 4 ) 2 /ACN solution exhibits relatively a sharp peak at 409 cm −1 , which may be attributed to ν 8 C−C≡N asymmetric bending of Mg 2+ ions coordinated with ACN .…”

“…The peak at 2256 cm À1 is attributed to n 2 CN stretching band of the free ACN in the Mg(ClO 4 ) 2 electrolyte solutions (2254 cm À1 in pure ACN). [43][44][45][46][47][48][49] The peak at 2294.3 cm À1 exists in all the electrolyte solutions and in the pure ACN spectra also. This peak is attributed to n 3 + n 4 combination band of free ACN [43,45,46,48] and is also associated with the n 2 CN stretching of Mg-ions coordinated by ACN.…”

“…[43][44][45][46][47][48][49] The peak at 2294.3 cm À1 exists in all the electrolyte solutions and in the pure ACN spectra also. This peak is attributed to n 3 + n 4 combination band of free ACN [43,45,46,48] and is also associated with the n 2 CN stretching of Mg-ions coordinated by ACN. [44,48] The n 3 and n 4 symmetric stretching at 921 and 1375 cm À1 , respectively are presented in figure S2.…”

“…The peak at 383 cm À1 is attributed to n 8 CÀCN asymmetric bending of free ACN (380.5 cm À1 for pure ACN). [43,45,46] The spectrum of the Mg(ClO 4 ) 2 /ACN solution exhibits relatively a sharp peak at 409 cm À1 , which may be attributed to n 8 CÀCN asymmetric bending of Mg 2 + ions coordinated with ACN. [44] The intensity of this peak also decreases sharply when DME is added.…”