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Aqueous Biphasic Systems with Ionic Liquids
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Figure 15. Chemical structure of the ILs studied: (i) [C1mim][Cl]; (ii) [C2mim][Cl]; (iii)
[C4mim][Cl]; (iv) [C6mim][Cl]; (v) [C7H7mim][Cl]; (vi) [amim][Cl]; (vii) [OHC2mim][Cl]; (viii)
[im][Cl]; (ix) [C1im][Cl]; (x) [C2im][Cl]; (xi) [C2mim][CF3SO3]; (xii) [C2mim][CH3SO3]; (xiii)
[C2mim][Br]; (xiv) [C2mim][MeSO4]; (xv) [C2mim][EtSO4]; (xvi) [C2mim][CH3CO2] ; (xvii)
[C4mim][HSO4]; (xviii) [C4mim][TFA]; (xix) [C4mim][N(CN)2]; (xx) [C4mim][Br]; (xxi)
[C4mim][CF3SO3]; (xxii) [C4mim][CH3SO3]; (xxiii) [C4mim][CH3CO2].
38
Cl
i ii iii
-
v
viii
N +
HN
xii
xv
N
xviii
F
xxi
Cl -
O
S
O
N +
F
F
N
NH +
N +
O
O
F
N +
N +
O S O- F
F
Cl -
O -
O
O
S
O
N +
N
O -
N
O -
ix
N
N
N +
HN
Cl -
N
Cl -
N +
xvi
xiii
xix
N +
Br -
x
N +
N
N
N
C C
N N
xiv
xvii
iv
vi vii
xxii
O
O
S
O
Cl -
N +
N +
N +
O -
Cl -
O -
N
Cl -
N +
N
N +
N
NH
N
HO
N
F
xi
xx
Cl -
O
S
O
F
F
O
N +
N +
Br -
N +
N +
O S O- xxiii
O
O
N +
Cl -
O
S
O
N +
N +
O -
N
N
N
O -
O -
N
N
N
OH