Charles Pedersen

Charles John Pedersen (* 3. October 1904 in Busan, Korea; † 26. October 1989 in Salem, new jersey) was an US-American chemist with DuPont.

It kept 1987 common with Donald J. Cram and Jean Marie lean the Nobelpreis for chemistry “for the development and use of molecules with structure-specific reciprocal effect of high selectivity”.

Table of contents

lives

its father was a Norwegian Marineingenieur, who worked in an American gold mine in Korea, its nut/mother Takino Yasui was from Japan. With eight years its parents sent it after Nagasaki into a boarding school, two years later changed it to a catholic boarding school in Yokohama.

It studied chemistry to the Dayton University and at the Massachusetts Institute of Technology, where it made its mast R-S conclusion. Its professors wanted that it attained a doctorate, but it wanted to load its father not longer financially and decided for a place with DuPont. There it remained 42 years.

In the retirement he dedicated to fishing, the bird observation, its garden and was written poems.

It died 1989 after long serious illness.

research work

in the first professional years with DuPont starting from 1927 it developed among other things an improved manufacturing method for that at that time as knock-knocking those used fuel additive Bleitetraethyl. Under the 65 to him given patents are several over fuel additives.

it changed 1959 in another DuPont research lab. There it examined the catalytic effect of Schwermetallverbindungem with organic ligands. He researched systematically the complex connections of the vanadium. It discovered 1960 remarkable crystals in the muddy arrears of an attempt. It examined it more exactly, whereby it discovered the unknown connecting class of the Kronenether. More exactly said it concerned the connection 2,3,11,12-dibenzo-1,4,7,10,13,16-hexaoxacyclooctadeca-2,11-diene, to which it gave the lighter name dibenzo-18-crown-6 which can be noticed. Over several years it examined the new connecting class in detail.

1967 it submitted the sum of its discoveries for publication. Completely against the academic custom it had all results of working from several years as 20 sides is enough for article collected been publishing, against what others would have submitted a dozen of publications from the same material. The article found immediately far acknowledgment.

Pedersen, which wrote publications only reluctantly, wrote only some smaller follow-up articles and went two years later into the retirement. The study of the Kronenether was world-wide continued and developed by different working groups.

The message over the award of the Nobelpreises in October 1987 came for the modest, friendly pensioner Pedersen completely unexpectedly.

literature

  • Charles Pedersen: Macrocyclic of Polyethers for Complexing Metals J. To. Chem. one. Soc. 89, 7017 (1967)
  • Michael Freemantle; Chemical and engineering news, July 31, 2003, volume. 81, No. 29, pg 33. (Articles over Charles Pedersen)

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