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Articles - Isotope (Site not responding. Last check: 2007-10-12) |
 | | Similarly, two molecules which differ only in the isotopic nature of their atoms (´´isotopologues´´) will have nearly identical electronic structure, and therefore have similar physical and chemical properties. |
| | The vibrational modes of a molecule are determined by its shape and by the masses of its constituent atoms. |
| | Since vibrational modes allow a molecule to absorb photons of corresponding energies, isotopologues have different optical properties in the infrared range. |
| www.zdiamond.net /articles/Isotope (892 words) |
