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Line 1: {{Short description\|German chemist (1850–1902)}} {{Infobox scientist \| name = ~~Hands~~Hans ~~per~~von Pechmann \| image = ~~Hands~~Hans ~~per~~v ~~Perchmann~~Pechmann ca1899.jpg \| image_size = \| caption = \| birth_date = 1 April ~~1869~~1850 \| birth_place = [[Nürnberg]], [[Kingdom of Bavaria]], [[German Empire]] \| nationality = German▼ ~~\|residence = [[Germany]]~~ \| death_date = {{Death date and age\|1902\|4\|19\|1850\|4\|1\|df=y}}▼ ▲\|nationality = German \| death_place = [[Tübingen]], [[Kingdom of Württemberg]], [[German Empire]] ▲\|death_date = {{Death date and age\|1902\|4\|19\|1850\|4\|1\|df=y}} \| field = [[organic chemistry]]▼ ~~\|death_place = [[Tübingen]]~~ \| work_institution = [[University of Munich]] [[University of Tübingen]] ▲\|field = [[organic chemistry]] \|~~work_institution~~ =alma_mater ~~[[University~~ of ~~Munich]]~~ = [[University of ~~Tübingen~~Greifswald]] \| doctoral_advisor = [[Heinrich Limpricht]]▼ ~~\|alma_mater = [[University of Greifswald]]~~ \| doctoral_students = [[William Hobson Mills]] [[Julius B. Cohen]] ▲\|doctoral_advisor = [[Heinrich Limpricht]] \|~~doctoral_students~~ known_for = [[~~William~~Pechmann ~~Hobson Mills~~condensation]] [[~~Julius B. Cohen~~Diazomethane]] \| prizes = ▼ ~~\|known_for = [[Pechmann condensation]] [[Diazomethane]]~~ \| religion = ▼ ▲\|prizes = \| footnotes = ▼ ▲\|religion = }}'''Hans Freiherr{{efn\|{{German title Freiherr}}}} von Pechmann''' (1 April 1850 – 19 April 1902) was a German [[chemist]], renowned for his discovery of [[diazomethane]] in 1894.<ref>{{cite journal▼ ▲\|footnotes = ▲}}'''Hans von Pechmann''' (1 April 1850 – 19 April 1902) was a German [[chemist]], renowned for his discovery of [[diazomethane]] in 1894.<ref>{{cite journal \| author= H. von Pechmann \| title = Ueber Diazomethan Line 69 ⟶ 68: Von Pechmann also produced the first example of solid [[polyethylene]] [[serendipitous]]ly in 1898, via the decomposition of diazomethane. ==Life== HeVon Pechmann was born in [[Nürnberg]], the only son of a doctor, who was also named Hans. The von Pechmanns had distinguished themselves as soldiers; in 1702, von Pechmann's ancestor Martin Günther von Pechmann, a general of artillery in the Bavarian army, had been raised to the rank of a baron of the [[Holy Roman Empire]] by [[Leopold I, Holy Roman Emperor\|Leopold I]].<ref name="bio"/> After studying with [[Heinrich Limpricht]] at the [[University of Greifswald]] he became ~~Professor~~professor at the [[University of Munich]] till 1895. He was professor at the [[University of Tübingen]] from 1895 until his death. He killed himself by taking cyanide, aged 52.<ref name="bio">{{cite journal \| doi = 10.1002/cber.190303604134 \| title = Hans von Pechmann \| year = 1903 \| last1 = Koenigs \| first1 = Wilhelm \| journal = Berichte der Deutschen Chemischen Gesellschaft \| volume = 36 \| pages = 4417–4511 \| issue = 4\| url = https://zenodo.org/record/1426084 }}</ref> ==Works== Line 77: ==See also== *[[German inventors and discoverers]] == Notes == {{notelist}} ==References== Line 92 ⟶ 95: [[Category:Suicides in Germany]] [[Category:1902 suicides]] [[Category:1902 deaths]]