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Dielectric Increments & Dervied Dipole Moments for some Amino Acids & Glycine Peptide Chains in Aqueous Solution at 25°C |
| Sample |
Dielectric Increment δ |
Debye Units (from eqn 3.5*) |
References |
| α-Alanine |
23.2 |
15.9 |
13 |
|
27.7 |
17.4 |
14 |
| l-Asparagine |
28.4 |
17.6 |
14 |
|
20.4 |
14.9 |
16 |
| l-Aspartic Acid |
27.8 |
17.4 |
14 |
| d-Glutamic Acid |
26 |
16.8 |
14 |
| l-Glutamine |
20.8 |
15.1 |
16 |
| Glycine |
22.6 |
15.7 |
13 |
|
26.4 |
17.0 |
14 |
| l-α-Leucine |
25 |
16.5 |
14 |
| Glycine Dipeptide |
70 |
27.6 |
14 |
|
70.5 |
27.7 |
17 |
| Glycine Tripeptide |
113 |
35.1 |
13 |
|
128 |
37.3 |
17 |
| Glycine Tetrapeptide |
159 |
41.6 |
13 |
| Glycine Pentapeptide |
215 |
48.4 |
13 |
| Glycine Hexapeptide |
234 |
50.5 |
13 |
| Glycine Heptapeptide** |
290 |
56.2 |
5 |
| Taken from Pethig p.80 |
* Equ 3.5: µ = 3.30 δ01/2
** In 5.14 molar urea
Reference 5: J Wyman, J. Am. Chem. Soc., 14 1 (1959)
Reference 13: J. Wyman and T. L. McMeekin, J. Am. Chem. Soc., 55, 908 (1933)
Reference 14: P. Devoto, Gazz. Chim. Ital., 60, 520 (1930); 61, 897 (1931); 64, 76 (1934)
Reference 16: H. Greenstein and J Wyman, J Am. Chem. Soc., 58, 463 (1936)
Reference 17: A. Cavallaro, Arch. Sci. Biol., 20, 567 (1934)
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