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Tautomer energy comparison

using model chemistry: B1B95/aug-cc-pVTZ

17 10 12 10 46
formula sketch Energy (kJ mol-1) Name difference
A B calculated experiment A B
C4H6 sketch of 1,2-Butadiene sketch of 1,3-Butadiene -26 -51 1,2-Butadiene 1,3-Butadiene 25
C4H6 sketch of Cyclobutene sketch of 1,3-Butadiene -26 -49 Cyclobutene 1,3-Butadiene 24
C4H6 sketch of 1-Methylcyclopropene sketch of 1,2-Butadiene -68 -82 1-Methylcyclopropene 1,2-Butadiene 14
C4H6 sketch of Methylenecyclopropane sketch of 1-Methylcyclopropene 47 42 Methylenecyclopropane 1-Methylcyclopropene 5
C3H6O sketch of Oxetane sketch of Propanal -100 -110 Oxetane Propanal 10
C4H8 sketch of cyclobutane sketch of 1-Butene -18 -33 cyclobutane 1-Butene 15
C5H8 sketch of 1,2-Butadiene, 3-methyl- sketch of 1,3-Butadiene, 2-methyl- -42 -52 1,2-Butadiene, 3-methyl- 1,3-Butadiene, 2-methyl- 10