Figure 3. Optimized geometries of corresponding reactants and products from Diels-Alder reactions 4 (A) and 7 (B). Selected bond lengths, in Angstroms, are depicted

From

Teaching Thermodynamic, Geometric and Electronic Aspects of Diels-Alder Cycloadditions by Using Computational Chemistry – An Undergraduate Experiment

Norberto K. V. Monteiro, Caio L. Firme

World Journal of Chemical Education. 2015, 3(6), 141-149 doi:10.12691/wjce-3-6-3