The mechanisms may be divided into three categories : isodesmic, ring-chain, and cooperative.
2.
To quantify hyperconjugation effect, they designed the following isodesmic reactions in 1-butyne and 1-butene.
3.
According to in silico calculations on the following hypothetical isodesmic reactions, coronene has a somewhat higher resonance energy per pi electron ( REPE ) than benzene:
4.
If different sample molecules produce shared fragment ions, a complete thermochemical chain can be constructed, as was shown for some methyl trihalides, where the uncertainty in e . g . the CHCl 2 Br, ( calculated isodesmic reaction energies to build thermochemical networks.
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