The carbonyl-Diels-Alder reaction catalyzed by bismuth (III) chloride

<b>Hard and Soft Acids and Bases</b>

Ralph G. Pearson · Journal of the American Chemical Society · 1963 · 9.9K citations

Engineering, Acid-base Chemistry, Databases +17

Absolute hardness: companion parameter to absolute electronegativity

Robert G. Parr, Ralph G. Pearson · Journal of the American Chemical Society · 1983 · 7.6K citations

Engineering, Altmetric Attention Score, Bibliometrics +16

Frontier Orbitals and Organic Chemical Reactions

Journal of Molecular Structure · 1979 · 3.4K citations

Natural Sciences, Organic Chemistry, Reactivity (Chemistry) +4

Recent advances in the concept of hard and soft acids and bases

Ralph G. Pearson · Journal of Chemical Education · 1987 · 1.4K citations

Dangerous properties of industrial materials

Food and Cosmetics Toxicology · 1969 · 1.2K citations

Materials Science, Engineering, Dangerous Properties +4