Speciation in Solutions of Lithium Salts in Dimethyl Sulfoxide, Propylene Carbonate, and Dimethyl Carbonate from Raman Data: A Minireview

Table 4

Relaxation and modulation times for Cl-O vibrations of anion in ionic solutions of DMSO, PC and DMC.

c, m.f.	LiClO4-DMSO		LiClO4-DMC		LiClO4-PC
	, ps	, ps	, ps	, ps	, ps	, ps
Free anion
0.05
0.1
0.15
0.2
0.25
Anion in SSIP
0.05				9 ± 1	2.7 ± 0.3	5.3 ± 0.3
0.1			1.3 ± 0.2	9 ± 1	2.8 ± 0.4	7.2 ± 0.4
0.15			1.3 ± 0.2	8 ± 1	2.9 ± 0.4	7.9 ± 0.4
0.2			1.2 ± 0.2	6 ± 1	2.8 ± 0.5	9.7 ± 0.5
0.25			1.1 ± 0.2	6 ± 1	2.8 ± 0.5	10.0 ± 0.5
Anion in CIP
0.05
0.1	3.0 ± 0.3	2.1 ± 0.3	1.0 ± 0.2	2.0 ± 0.2	0.76 ± 0.04	0.17 ± 0.04
0.15	2.4 ± 0.1	7.3 ± 0.6	0.9 ± 0.1	0.8 ± 0.1	0.86 ± 0.03	0.23 ± 0.05
0.2	1.75 ± 0.02	0.64 ± 0.09	0.9 ± 0.1	0.4 ± 0.1	0.84 ± 0.03	0.13 ± 0.03
0.25	1.37 ± 0.02	0.25 ± 0.04	1.0 ± 0.1	0.35 ± 0.05	0.82 ± 0.03	0.13 ± 0.03

Less than 1% uncertainty. Less than 2% uncertainty.