Lionel Salem
Lionel Salem (5 March 1937 – 29 June 2024)[1] was a French theoretical chemist, former research director at the French National Centre for Scientific Research (CNRS), retired since 1999.[2] He is a member of the International Academy of Quantum Molecular Science[3] which named him its annual award winner in 1975 for his work on photochemical processes and on chemical reaction mechanisms.[4]
He has contributed to the theories of forces between molecules, of conjugated molecules, of organic reaction mechanisms and of heterogeneous catalysis. He developed the electronic theory of diradicals, as well as the concepts of diradical and zwitterionic states.[5] In 1968, he described the energy change for the approach of two molecules as a function of their orbitals' properties; this approach, pursued independently by Gilles Klopman, led to the Klopman–Salem equation and the theory of frontier orbitals.[6][7]
He is the author of several books on chemical subjects, including The Molecular Orbital Theory of Conjugated Systems (1966), The Organic Chemist's Book of Orbitals (with William L. Jorgensen, 1973), The Marvelous Molecule (1979), and Electrons in Chemical Reactions (1982).[5][8] Salem died on 29 June 2024, at the age of 87.[9]
External links
[edit]Anders, Udo (28 October 1997). "Interview with Professor Lionel Salem". Early Ideas in the History of Quantum Chemistry. Retrieved 15 October 2020.
References
[edit]- ^ Eisenstein, Odile; Jean, Yves (19 July 2024). "Disparition de Lionel Salem, grande figure de la chimie théorique". cnrs CHIMIE (in French). CNRS. Retrieved 22 November 2024.
- ^ "Organisation et moyens". www.cvc.u-psud.fr (in French). Retrieved 15 October 2020.
- ^ "Members of the Academy". IAQMS (International Academy of Quantum Molecular Science). Retrieved 15 October 2020.,
- ^ "Award Winners". IAQMS (International Academy of Quantum Molecular Science. Retrieved 15 October 2020.
- ^ a b "Lionel Salem". Members. International Academy of Quantum Molecular Science (IAQMS). Menton, France. Archived from the original on 23 May 2024. Retrieved 15 October 2020.
Salem has made contributions to the theories of intermolecular forces, conjugated molecules, organic reaction mechanisms and heterogeneous catalysis
- ^ Salem, Lionel (1 January 1968). "Intermolecular orbital theory of the interaction between conjugated systems. I. General theory". Journal of the American Chemical Society. 90 (3): 543–552. doi:10.1021/ja01005a001.
- ^ Klopman, Gilles (1 January 1968). "Chemical reactivity and the concept of charge- and frontier-controlled reactions". Journal of the American Chemical Society. 90 (2): 223–234. doi:10.1021/ja01004a002.
- ^ Salem, Lionel (1982). Electrons in Chemical Reactions. Wiley-Interscience. doi:10.1002/bbpc.19830870625. ISBN 0-471-08474-3.
- ^ "Lionel Samuel death notice". 29 June 2024. Retrieved 22 November 2024.
