# Friedel

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**Friedel** or **[Friedl](/source/Friedl)** is a Southern German diminutive variation of the surname [Fried](/source/Fried_(surname)) - or alternately, a diminutive of [Elfriede](/source/Elfriede) - and may refer to:

Four French scientists with the same [Friedel family](/source/Friedel_family) name are in direct lineage, [Charles](/source/Charles_Friedel), [Georges](/source/Georges_Friedel), [Edmond](/source/Edmond_Friedel) and [Jacques](/source/Jacques_Friedel):

- [Charles Friedel](/source/Charles_Friedel) (1832–1899), French chemist known for the [Friedel–Crafts reaction](/source/Friedel%E2%80%93Crafts_reaction)
- [Georges Friedel](/source/Georges_Friedel) (1865–1933), French crystallographer and mineralogist; son of Charles
- [Edmond Friedel](/source/Edmond_Friedel) (1895–1972), French Polytechnician and mining engineer, founder of [BRGM](https://fr.wikipedia.org/wiki/BRGM), the French geological survey; son of Georges
- [Jacques Friedel](/source/Jacques_Friedel) (1921–2014), French physicist; son of Edmond, see the French site for [Jacques Friedel](https://fr.wikipedia.org/wiki/Jacques_Friedel)

Other people:

- [Brad Friedel](/source/Brad_Friedel) (born 1971), American international football (soccer) goalkeeper
- [Frederic Friedel](/source/Frederic_Friedel) (born 1945), produced documentaries for German TV
- [Samuel Friedel](/source/Samuel_Friedel) (1898–1979), former U.S. Congressman who represented the 7th congressional district of Maryland
- [Joshua Friedel](/source/Joshua_Friedel) (born 1986), American professional chess player

## Related items

- [Friedel's law](/source/Friedel's_law), named after [Georges Friedel](/source/Georges_Friedel), the crystallographer, is a property of Fourier transforms of real functions
- [Friedel's salt](/source/Friedel's_salt), discovered by [Georges Friedel](/source/Georges_Friedel), is an anion exchanger mineral belonging to the family of the [layered double hydroxides](/source/Layered_double_hydroxides) (LDHs)
- [Friedel oscillations](/source/Friedel_oscillations), peculiar behavior of electrons near impurities and interfaces in metals

## See also

- [Freidel](/source/Freidel)
- [Friedl](/source/Friedl)

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Adapted from the Wikipedia article [Friedel](https://en.wikipedia.org/wiki/Friedel) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Friedel?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.