Hans Stammreich (July 16, 1902 in Remscheid, Prussia, Germany - March 6, 1969 in São Paulo, Brazil), was a Brazilian chemist of German origin and an important pioneer of

Raman spectroscopy Raman spectroscopy () (named after Indian physicist C. V. Raman) is a spectroscopic technique typically used to determine vibrational modes of molecules, although rotational and other low-frequency modes of systems may also be observed. Raman sp ...

and molecular

spectroscopy Spectroscopy is the field of study that measures and interprets the electromagnetic spectra that result from the interaction between electromagnetic radiation and matter as a function of the wavelength or frequency of the radiation. Matter wa ...

Life

After obtaining his PhD in physical chemistry after studying under Adolf Miethe at the

Berlin Technical University The Technical University of Berlin (official name both in English and german: link=no, Technische Universität Berlin, also known as TU Berlin and Berlin Institute of Technology) is a public research university located in Berlin, Germany. It was ...

, Stammreich became soon, partly influenced by his personal friendship with

Albert Einstein Albert Einstein ( ; ; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist, widely acknowledged to be one of the greatest and most influential physicists of all time. Einstein is best known for developing the theory ...

, interested in molecular spectroscopy, especially

. After he was fired from TU Berlin in April 1933 because of his Jewish background, Stammreich emigrated to Paris, where he stayed until 1940, working in the labs of

Paul Langevin Paul Langevin (; ; 23 January 1872 – 19 December 1946) was a French physicist who developed Langevin dynamics and the Langevin equation. He was one of the founders of the ''Comité de vigilance des intellectuels antifascistes'', an ant ...

and Charles Fabry at the Sorbonne, with a brief interruption in 1935/36, when he first made

aliyah Aliyah (, ; he, עֲלִיָּה ''ʿălīyyā'', ) is the immigration of Jews from Jewish diaspora, the diaspora to, historically, the geographical Land of Israel, which is in the modern era chiefly represented by the Israel, State of Israel ...

with his wife and briefly lived in

Palestine __NOTOC__ Palestine may refer to: * State of Palestine, a state in Western Asia * Palestine (region), a geographic region in Western Asia * Palestinian territories, territories occupied by Israel since 1967, namely the West Bank (including East ...

(with a written recommendation letter by Einstein), and subsequently briefly worked in Teheran. In 1940, Stammreich and his wife obtained a visa for

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

and emigrated via

Casablanca Casablanca, also known in Arabic as Dar al-Bayda ( ar, الدَّار الْبَيْضَاء, al-Dār al-Bayḍāʾ, ; ber, ⴹⴹⴰⵕⵍⴱⵉⴹⴰ, ḍḍaṛlbiḍa, : "White House") is the largest city in Morocco and the country's econom ...

. Whereas Stammreich's wife Charlotte could directly travel to Brazil without problems, Hans was briefly arrested and put in a POW camp by the French Vichy government, but was subsequently released and deported to Portugal, whence he left for Brazil. In Brazil Stammreich became professor for Physical Chemistry at the

University of São Paulo The University of São Paulo ( pt, Universidade de São Paulo, USP) is a public university in the Brazilian state of São Paulo. It is the largest Brazilian public university and the country's most prestigious educational institution, the best ...

, where he soon resumed his work in Raman spectroscopy. Stammreich was an excellent experimenter, amongst many other innovations in 1956 he was the first to obtain Raman spectra with a Helium lamp. A detailed list of his scientific innovations can be found in the web article by Andre Trombetta cited below.

Sources

Bernhard Schrader Bernhard Schrader (15 March 1931 – 8 January 2012) was a German professor of Theoretical and Physical Chemistry and teaching until his retirement in 1996 at the University of Essen, where he died. Schrader was an internationally acclaimed p ...

and Andreas Otto, Hans Stammreich, Bunsen-Magazin, 2. Jahrgang, 5/2000, S. 120–122: * Hans Stammreich: in André Trombetta, since 2011: „Neglected Science – Scientific Research in developing countries" http://www.neglectedscience.com/alphabetical-list/s/hans-stammreich {{DEFAULTSORT:Stammreich, Hans Brazilian chemists Brazilian physicists 1902 births 1969 deaths German emigrants to Brazil Jewish emigrants from Nazi Germany to France People from Remscheid Academic staff of the Technical University of Berlin Technical University of Berlin alumni