One day I discovered that one could get the barrier to internal rotation in ethane approximately right using this method. This was the beginning… — Roald Hoffmann Copy Share Image
Alan Rocke's Image and Reality does so many things vividly and convincingly: it shows how visual images led chemistry step by step to the reality of the microscopic world; how simple portrayals of the logic of substitution and combination were reified; brings to our attention the imaginative, neglected work of Williamson and Kopp; and takes a critical look at Kekule's… — Roald Hoffmann Copy Share
Not every collision, not every punctilious trajectory by which billiard-ball complexes arrive at their calculable meeting places lead to reaction. ... Men (and women)… — Roald Hoffmann Copy Share Image
From a chemist's point of view, the surface or interior of a star…is boring—there are no molecules there. — Roald Hoffmann Copy Share Image
A few atoms added here, subtracted there, is all it takes to make the difference between male and female sex characteristics, between a harmless… — Roald Hoffmann Copy Share Image
I am a teacher, and I am proud of it. At Cornell University I have taught primarily undergraduates, and indeed almost every year since… — Roald Hoffmann Copy Share Image
