1936
DOI: 10.1007/bf01336710
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Refraktion und Dispersion des Deuteriums

Abstract: Es wird die Refral~ion trod die Dispersion des Deuteriums zwischen 5790 und 2300 A experimentell bestimmt. Die Refraktionswerte liegen unter denjenigen yon H2, and aueh die Dispersionskmwe ist etwas flacher. Die ~nderung wird gr6Btenteils dureh die ungleiehe Nullpunktsenergie der'beiden Isotope erkls Der Isotopeneffekt bei der ~e~raktion is~ yon Lu ~ en l) bei D 2 0 naehgewiesen worden. Er fand, dab sowohl die Molrefraktion aJs die Dispersion klein6r Ms bei H e 0 ist, und deut~t dies Ms auf eiaer Verschiebung … Show more

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Cited by 14 publications
(2 citation statements)
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“…In that case o)/(^o,o) should be positive for homonuclear diatomics and simple polyatomics, (where the center of mass is independent of isotope -CH4/CD4 for example), and this is so. For H2/D 2 the effect deduced from the refractive index measurements [1,12,13] (Table 3) is in reasonable agreement with accurate quantum mechanical calculation. If the center of mass depends on isotopic substitution, however, second moment isotope effects can easily be inverse.…”
Section: Discussionsupporting
confidence: 72%
See 1 more Smart Citation
“…In that case o)/(^o,o) should be positive for homonuclear diatomics and simple polyatomics, (where the center of mass is independent of isotope -CH4/CD4 for example), and this is so. For H2/D 2 the effect deduced from the refractive index measurements [1,12,13] (Table 3) is in reasonable agreement with accurate quantum mechanical calculation. If the center of mass depends on isotopic substitution, however, second moment isotope effects can easily be inverse.…”
Section: Discussionsupporting
confidence: 72%
“…Although compari sons with previous condensed phase results from the literature are not useful (see above), resolutions of gas phase PIE's for H2/D 2 [13], CH4/CD4 [14], and H20 / D20 [15] into vibrational and second moment contri butions are included at the bottom of Table 3. These gas phase data are much more precise than those pre viously available for liquid phase compounds [1,12].…”
Section: Discussionmentioning
confidence: 99%