Table 2.
Determination of dimerization constant (KD), monomer concentration ([mnomer]) and dimer concentration ([dimer]) from FEDS-FTIR (C0, a1 and a2 are initial concentration of acetic acid and normalized absorbances at 1680 and 1770 cm−1, respectively).
| C0 | a1 | a2 | [monomer] | [dimer] | KD |
|---|---|---|---|---|---|
| (mol/L) | (u.a.) | (u.a.) | (mol/L) | (mol/L) | (mol/L) |
| 2.50 | 0.866 | 0.193 | 2.419 | 0.539 | 0.092 |
| 7.00 | 0.989 | 0.197 | 5.002 | 0.996 | 0.040 |
| 10.49 | 0.999 | 0.221 | 7.273 | 1.609 | 0.030 |
| 13.99 | 1.000 | 0.236 | 9.503 | 2.243 | 0.025 |
| 15.74 | 1.000 | 0.223 | 10.883 | 2.427 | 0.020 |
u.a.: absorbance units.