TY - JOUR AU - TI - Density Functional Theory Prediction of the Relative Energies and Isotope Effects for the Concerted and Stepwise Mechanisms of the Dielsāˆ’Alder Reaction of Butadiene and Ethylene JF - Journal of the American Chemical Society DO - 10.1021/ja9601494 DA - 1996-01-01 UR - https://www.deepdyve.com/lp/crossref/density-functional-theory-prediction-of-the-relative-energies-and-94ZdGnCkcH SP - 6036 EP - 6043 VL - 118 IS - 25 DP - DeepDyve ER -