[PAR] [TLE] Franck–Condon principle [SEP] The Franck–Condon principle is a rule in spectroscopy and quantum chemistry that explains the intensity of vibronic transitions. Vibronic transitions are the simultaneous changes in electronic and vibrational energy levels of a molecule due to the absorption or emission of a photon of the appropriate energy.  The principle states that during an electronic transition, a change from one vibrational energy level to another will be more likely to happen if the two vibrational wave functions overlap more significantly. [PAR] [TLE] James Franck [SEP] James Franck (26 August 1882 – 21 May 1964) was a German physicist who won the 1925 Nobel Prize for Physics with Gustav Hertz "for their discovery of the laws governing the impact of an electron upon an atom".  He completed his doctorate in 1906 and his habilitation in 1911 at the Frederick William University in Berlin, where he lectured and taught until 1918, having reached the position of professor extraordinarius.  He served as a volunteer in the German Army during World War I.  He was seriously injured in 1917 in a gas attack and was awarded the Iron Cross 1st Class.
[PAR] [TLE] Franck – Condon principle [ SEP ] The Franck – Condon principle is a rule in spectroscopy and quantum chemistry that explains the intensity of vibronic transitions . Vibronic transitions are the simultaneous changes in electronic and vibrational energy levels of a molecule due to the absorption or emission of a photon of the appropriate energy . The principle states that during an electronic transition , a change from one vibrational energy level to another will be more likely to happen if the two vibrational wave functions overlap more significantly . [PAR] [TLE] James Franck [ SEP ] James Franck ( 26 August 1882 – 21 May 1964 ) was a German physicist who won the 1925 Nobel Prize for Physics with Gustav Hertz " for their discovery of the laws governing the impact of an electron upon an atom " . He completed his doctorate in 1906 and his habilitation in 1911 at the Frederick William University in Berlin , where he lectured and taught until 1918 , having reached the position of professor extraordinarius . He served as a volunteer in the German Army during World War I. He was seriously injured in 1917 in a gas attack and was awarded the Iron Cross 1st Class .
The Franck–Condon principle was postulated by which 1925 Nobel Physics Prize recipient?
The Franck – Condon principle was postulated by which 1925 Nobel Physics Prize recipient ?
James Franck
James Franck