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Advances in Physical Chemistry
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Advances in Physical Chemistry
/
2012
/
Article
/
Fig 2
/
Research Article
Conformational Analysis of Quaternary Ammonium-Type Ionic Liquid Cation,
N,N
-Diethyl-
N
-methyl-
N
-(2-methoxyethyl) Ammonium Cation
Figure 2
Potential energy surface of the side chain of [DEME]
+
as a function of (a) CN
+
CC, (b) N
+
COO
−
, and (c) CCO
−
C dihedral angles. Here, two CCN
+
C angles for the ethyl-group of [DEME]
+
are fixed at 180°, whose angle corresponds to
form.
(a)
(b)
(c)