pKa values and gas-phase acidities of superacid molecul
pKa values and gas-phase acidities of superacid molecul
pKa values and gas-phase acidities of superacid molecul
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250<br />
256<br />
255.5 HSbF 6<br />
250.8 HAuF 6<br />
250<br />
243<br />
240<br />
HB(CF3 ) 4<br />
NC<br />
NC<br />
H<br />
NC CN<br />
C<br />
H<br />
H<br />
H<br />
H H<br />
Cl<br />
Cl<br />
Cl<br />
CN CN<br />
- H +<br />
CN NC P CN<br />
- B CN H + NC CN<br />
-<br />
Cl<br />
Cl<br />
H +<br />
Cl<br />
Cl Cl<br />
Acidity in the<br />
<strong>gas</strong> <strong>phase</strong><br />
Cl<br />
CCl<br />
Cl<br />
Cl<br />
225<br />
200<br />
225<br />
213<br />
C CN<br />
NC CN<br />
NC CN<br />
-<br />
F NC NC CN CN<br />
NC<br />
C<br />
F<br />
F<br />
H +<br />
F CN<br />
F F<br />
F<br />
F<br />
< 175<br />
F<br />
-<br />
F<br />
CN<br />
F F CF<br />
H +<br />
3<br />
C<br />
F 3 C<br />
CF 3<br />
CF F3 C CF 3 3<br />
-<br />
F<br />
F 3 C 3 C CF 3 CF 3<br />
F 3 C H +<br />
CF 3<br />
Cl<br />
Cl<br />
Cl<br />
Cl<br />
Cl<br />
H +<br />
Cl<br />
GA = 241 ± 29 kcal/mol<br />
- Meyer et al, JACS, 2009, 131, 18050<br />
-Kütt et alChem Phys Chem,<br />
2008<br />
- Kütt et al, JOC, 2008, 73, 2607<br />
- Leito et al, J Mol Stru Theochem.<br />
2007, 815, 41<br />
- Leito et al, JPC A, 2009, 113, 8421<br />
- Koppel et al, JACS, 2000,<br />
31<br />
122, 5114<br />
Thanks<br />
to all these<br />
people!<br />
32<br />
16
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