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Table 4 The computed energy and activation barriers for TS1, TS2 obtained at B3LYP/6-311++g(d, p) level of theory for the formation of product according to Figs. 4 and 5

From: Thermal degradation of aqueous 2-aminoethylethanolamine in CO2 capture; identification of degradation products, reaction mechanisms and computational studies

Species

Energy (Ha)

Relative energy (Ha)

Relative energy (kcal/mol)

Reactant 1

−533.1227263

0

0.00

TS1

−532.8979985

0.22472785

141.02

Product 1

−533.1261536

−0.00342728

−2.15

Reactant 2

−533.1150498

0

0.00

TS2

−532.9009546

0.214095141

134.35

Product 2

−533.1261536

−0.011103859

−6.97