Poly-L-alanine, α-helix
- Monomer Formula: C3H5NO
- Monomer Molecular weight: 71.0779
- CAS Registry Number: 25191-17-7
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Condensed phase thermochemistry data
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°solid,1 bar | 101.7 | J/mol*K | N/A | Daurel, Delhaes, et al., 1975 | |
| S°solid,1 bar | 116.7 | J/mol*K | N/A | Daurel, Delhaes, et al., 1975 |
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 93.47 | 300. | Roles and Wunderlich, 1991 | T = 230 to 390 K. |
| 93.47 | 300. | Roles, 1991 | T = 220 to 390 K. |
References
Go To: Top, Condensed phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Daurel, Delhaes, et al., 1975
Daurel, M.; Delhaes, P.; Dupart, E.,
Variations thermiques, entre 1 et 300K, de la chaleur specifique de la L-alanine, tri(L-alanine) et de la poly(L-alanine),
Biopolymers, 1975, 14, 801-823. [all data]
Roles and Wunderlich, 1991
Roles, K.A.; Wunderlich, B.,
Heat capacities of solid poly(amino acids). I. Polyglycine, poly(L-alanine), and poly(L-valine),
Bipolymers, 1991, 31, 477-487. [all data]
Roles, 1991
Roles, K.A.,
Heat capacity studies of solid poly(amino acids),
Diss. Abstr. Int., 1991, B 52(6), 3095. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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