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Charles J. Pedersen



  Charles John Pedersen (October 3, 1904 – October 26, 1989) was an American organic chemist best known for describing methods of synthesizing crown ethers. He was awarded the Nobel Prize in Chemistry in 1987. His Japanese first name was Yoshio (良男?).

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Born in Pusan, Korean peninsula to a Norwegian father and a Japanese mother, in 1904, Pedersen came to the United States in 1922 to study chemical engineering at the University of Dayton in Ohio. After receiving a bachelor's degree, he went to the Massachusetts Institute of Technology where he received a master's degree in organic chemistry. Although his professors encouraged him to pursue a Ph.D. at MIT, Pedersen decided to start his career instead, partially because he no longer wanted to be supported by his father. He is one of the few people to win a Nobel prize in the sciences without having a Ph.D.

In 1927, Pedersen began working at du Pont where he would remain for the next 42 years, retiring at the age of 65. At du Pont, his work resulted in 25 papers and 65 patents. In 1967 he published two works that are now considered classics; they describe the methods of synthesizing crown ethers (cyclic polyethers). The donut-shaped molecules were the first in a series of extraordinary compounds that form stable structures with alkali metal ions. In 1987 he shared the Nobel Prize in Chemistry with Donald Cram and Jean-Marie Lehn for his work in this area; Cram and Lehn expanded upon his original discoveries.

Pedersen was diagnosed with myeloma in 1983, and though he was becoming increasingly frail, he traveled to Stockholm to accept the Nobel Prize in late 1987. Shortly thereafter, he was awarded a medal for excellence by the du Pont Research Fellows.


 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Charles_J._Pedersen". A list of authors is available in Wikipedia.
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