Conformational Analysis of Quaternary Ammonium-Type Ionic Liquid Cation, N,N-Diethyl-N-methyl-N-(2-methoxyethyl) Ammonium Cation

Table 1

Energy difference (Δ𝐸) between the ethyl-chain conformers of [DEME]⁺ cation.

Conformer	Δ𝐸^𝑇𝑇→𝑋𝑋 (kJ/mol)
T T	0
𝑇𝐺^+	+2.24
𝑇𝐺^−	+13.0
𝐺^−𝐺^−	+13.4
𝐺^−𝐺^+	+16.6
𝐺^+𝐺^−	+16.8
𝐺^+𝐺^+	+26.2