Franck-Condon principle

Franck-Con·​don principle | \ ˈfraŋkˈkändən-, -räŋ- \

Definition of Franck-Condon principle

: a principle in spectroscopy: the intensities of molecular spectral bands due to electronic transitions are consistent with the assumption that the relatively large mass of the atomic nuclei in the molecule prevents appreciable change in their configuration during such transitions

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First Known Use of Franck-Condon principle

1928, in the meaning defined above

History and Etymology for Franck-Condon principle

after James Franck †1964 American physicist born in Germany and Edward U. Condon, born 1902 American physicist

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The first known use of Franck-Condon principle was in 1928

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Cite this Entry

“Franck-Condon principle.” Dictionary, Merriam-Webster, Accessed 7 Mar. 2021.

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