Uracil, 1-methyl-
- Formula: C5H6N2O2
- Molecular weight: 126.1133
- IUPAC Standard InChI: InChI=1S/C5H6N2O2/c1-7-3-2-4(8)6-5(7)9/h2-3H,1H3,(H,6,8,9)
- IUPAC Standard InChIKey: XBCXJKGHPABGSD-UHFFFAOYSA-N
- CAS Registry Number: 615-77-0
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 1-Methyluracil; 2,4(1H,3H)-Pyrimidinedione, 1-methyl-
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Phase change data
Go To: Top, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: William E. Acree, Jr., James S. Chickos
Enthalpy of sublimation
| ΔsubH (kJ/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 121.7 ± 4.0 | 439. | TE | Brunetti, Piacente, et al., 2000 | Based on data from 343. to 428. K. |
| 112.5 ± 2.6 | 398. | QR | Teplitsky, Yanson, et al., 1980 | Based on data from 378. to 418. K. |
| 105. ± 8. | 457. | HSA | Nowak, Szczepaniak, et al., 1978 | Based on data from 435. to 480. K. |
Gas phase ion energetics data
Go To: Top, Phase change data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Ionization energy determinations
| IE (eV) | Method | Reference |
|---|---|---|
| 9.0 ± 0.1 | EI | Verkin, Sukodub, et al., 1976 |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Brunetti, Piacente, et al., 2000
Brunetti, Bruno; Piacente, Vincenzo; Portalone, Gustavo,
Sublimation Enthalpies of Some Methyl Derivatives of Uracil from Vapor Pressure Measurements,
J. Chem. Eng. Data, 2000, 45, 2, 242-246, https://doi.org/10.1021/je9902802
. [all data]
Teplitsky, Yanson, et al., 1980
Teplitsky, A.B.; Yanson, I.K.; Glukhova, O.T.; Zielenkiwicz, A.; Zielenkiewicz, W.; Wierzchowski, K.L.,
Thermochemistry of aqueous solutions of alkylated nucleic acid bases,
Biophysical Chemistry, 1980, 11, 1, 17-21, https://doi.org/10.1016/0301-4622(80)85003-4
. [all data]
Nowak, Szczepaniak, et al., 1978
Nowak, M.J.; Szczepaniak, K.; Barski, A.; Shugar, D.Z.,
Z. Naturforsch. C, 1978, 33C, 876. [all data]
Verkin, Sukodub, et al., 1976
Verkin, B.I.; Sukodub, L.F.; Yanson, I.K.,
Ionization potentials of nitrogenous bases of of nucleic acids,
Dokl. Akad. Nauk SSSR, 1976, 228, 1452. [all data]
Notes
Go To: Top, Phase change data, Gas phase ion energetics data, References
- Symbols used in this document:
ΔsubH Enthalpy of sublimation - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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