. Author manuscript; available in PMC: 2018 Jun 21.

Published in final edited form as: Phys Chem Chem Phys. 2017 Jun 21;19(24):16144–16150. doi: 10.1039/c7cp02442h

Table 1.

Spectral parameters of CP in different solvents, arranged in order of increasing R value.

Solvent	ω₁, cm⁻¹	ω₂, cm⁻¹	Δ, cm⁻¹	R	W, cm⁻¹	Δ₀, cm⁻¹
Methanol	1747.9	1728.8	19.0	0.51	9.03	6.20
Butanol	1747.8	1729.0	18.7	0.70	9.25	3.32
Ethanol	1748.4	1729.2	19.2	0.75	9.50	2.74
Isopropanol	1748.2	1729.5	18.7	0.86	9.32	1.41
DCM	1743.9	1728.8	15.2	1.36	7.46	2.30
DMSO	1743.5	1729.0	14.5	1.42	7.14	2.52
1,4-dioxane	1746.4	1732.1	14.3	2.90	6.24	6.97
THF	1747.5	1730.3	17.2	2.90	7.51	8.38
Toluene	1747.5	1730.6	17.0	4.25	6.64	10.46