Daily Almanac for
Dec 2, 2009
Search White Pages
Search: Infoplease Info search tips
Search: Biographies Bio search tips
Encyclopedia

Le Bel, Joseph Achille

Le Bel, Joseph Achille (zhôsef' äshēl' lubel) [key], 18471930, French chemist. He was educated at the École polytechnique and carried out much of his research in his own private laboratory. He theorized (1874) that optical activity—the presence of two forms of the same organic molecule, one a mirror image of the other—is due to an asymmetric carbon atom bound to four different groups. For this contribution he is regarded as the cofounder of stereochemistry, with J. H. van't Hoff. His interests also included petrochemistry, cosmology, and biology.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

    • Cite
    • Print
    • Bookmark

See more Encyclopedia articles on: Chemistry: Biographies