title: Friedel family
text: # Friedel family
  
  Four French scientists with the same Friedel family name are in direct lineage, Charles, Georges, Edmond and Jacques:
  
  * Charles Friedel (1832–1899), French chemist known for the Friedel-Crafts reaction
  * Georges Friedel (1865–1933), French crystallographer and mineralogist; son of Charles
  * Edmond Friedel (1895–1972), French polytechnician and mining engineer, founder of BRGM, the French geological survey; son of Georges
  * Jacques Friedel, (1921–2014), French physicist; son of Edmond, see the French site for Jacques Friedel
  
  ## Related items
  
  * Friedel–Crafts reaction, a type of organic reaction developed by Charles Friedel and James Crafts in 1877.
  * Friedel's law, named after Georges Friedel, the crystallographer, is a property of Fourier transforms of real functions.
  * Friedel's salt, discovered by Georges Friedel, is an anion exchanger mineral belonging to the family of the layered double hydroxides (LDHs).
  