Franck-Condon principle


Franck-Con·​don 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

Word History


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

First Known Use

1928, in the meaning defined above

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

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Dictionary Entries Near Franck-Condon principle


Franck-Condon principle


Cite this Entry

“Franck-Condon principle.” Dictionary, Merriam-Webster, Accessed 28 Feb. 2024.

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