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The enthalpy of formation of selenocysteine: A G3 and G4 quantum chemical study

AuthorsNotario, Rafael ; Chickos, James S.; Liebman, J. F.
Issue Date2014
PublisherAcademic Press
CitationJournal of Chemical Thermodynamics 73: 134- 139 (2014)
AbstractThe gas phase enthalpy of formation of the amino acid containing selenium, selenocysteine, has been calculated using G3 and G4 calculations, the values being (-347.7 and -345.2) kJ · mol-1, respectively. The enthalpies of formation of the counterpart amino acids containing oxygen and sulfur, serine and cysteine, have also been calculated. The enthalpies of formation of compounds H2Z, C2H5ZH and (C 2H5)2Z (ZO, S, Se) have been calculated and compared with their available experimental values. The agreement between calculated and experimental values gives us confidence in our calculated values for the gas phase enthalpy of formation of selenocysteine. © 2014 Elsevier Ltd. All rights reserved.
Identifiersdoi: 10.1016/j.jct.2013.11.029
issn: 1096-3626
Appears in Collections:(IQFR) Artículos
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