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Hartree energy

Atomic fundamental physical constant used as atomic unit of energy: E h = ℏ 2 m e a 0 2 = 4.359 7482 26 × 10 −18 J, where ℏ is the Planck constant divided by 2 π, m e the electron rest mass and a 0 the Bohr radius.
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IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
Last update: 2014-02-24; version: 2.3.3.
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