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Week 23

Week 23: June 4 – 10 (Archive)

June 4

  • Jean A. C. Chaptal, born 1756, introduced name "nitrogen"; studied viticulture and dyeing.
  • Heinrich O. Wieland, born 1877, researched organic chemistry and biochemistry; Nobel Prize in Chemistry (1927).
  • Henri Moissan isolated fluorine by electrolysis of a solution of KHF2 in anhydrous HF in 1886.

June 5

  • Johan Gadolin, born 1760; in 1794, discovered yttrium (Y, 39).

June 6

June 7

  • Robert S. Mulliken, born 1896, Nobel Prize in Chemistry (1966).
  • James Y. Simpson, born 1811, an obstetrician whose use of chloroform as an anesthetic led to its acceptance and introduced the use of ether in Great Britain.

June 8

  • Francis H. C. Crick, born 1916, determined structure of deoxyribonucleic acid (DNA); Nobel Prize in Medicine (1962).
  • Edwin M. McMillan and Philip Abelson announced the discovery of neptunium (Np, 93) in 1940.
  • John D. Roberts, born 1918, researcher on molecular orbital calculations and the application or nuclear magnetic resonance to organic chemistry.

June 9

  • Hermann von Fehling, born 1812, discovered Fehling's solution as an oxidizing agent and an analytical reagent for aldehydes and sugars; elucidated composition of paraldehyde and metaldehyde; prepared phenyl cyanide.

June 10

  • Nikolaus A. Otto, born 1832, developed four-stroke internal-combustion engine (first practical alternative to steam engine as a power source).
  • John C.W.F. Tiemann, born 1848, elucidated the structure of the interrelated terpenes, Reimer-Tiemann reaction (1876) and the Tiemann rearrangement of amide oxides (1891).