CONDON, EDWARD UHLER. - EXPLAINING THE COVALENT BOND.

Wave Mechanics and the Normal State of the Hydrogen Molecule.

Easton, PA., Mack printing Compagny, 1927. Royal8vo. Contemp. full cloth. Spine gilt and with gilt lettering. In: "Proceedings of the National Academy of Sciences of the United States of America", Vol. 13. IX,865 pp. (Entire volume offered). Condon's paper: pp. 466-470.

First printing of pioneering paper uniting chemistry with Quantum mechanics. Condon explains the chemical bond by means of the new wave mechanics. A wave function is formulated that involves the introduction of a pair of electrons (the hydrogen molecule) in an electron orbital that extends about two ore more atomic nuclei. Together with a paper by Heitler and London from the same year, this paper marks the beginning of a new era in chemistry as it explains the chemical bond in terms of the new physics.

Henry M. Leicester "Source Book in Chemistry 1900-1950", pp. 151-156.

The volume contains also Condon's paper. "Coupling of electronic and nuclear Motions in Diatomic Molecules", pp. 462-466.

Order-nr.: 48883