When did the person that helped van Vleck develop CFT die?
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Crystal field theory Crystal Field Theory (CFT) is a model that describes the breaking of degeneracies of electron orbital states, usually d or f orbitals, due to a static electric field produced by a surrounding charge distribution (anion neighbors). This theory has been used to describe various spectroscopies of transition metal coordination complexes, in particular optical spectra (colors). CFT successfully accounts for some magnetic properties, colours, hydration enthalpies, and spinel structures of transition metal complexes, but it does not attempt to describe bonding. CFT was developed by physicists Hans Bethe and John Hasbrouck van Vleck in the 1930s. CFT was subsequently combined with molecular orbital theory to form the more realistic and complex ligand field theory (LFT), which delivers insight into the process of chemical bonding in transition metal complexes.
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Hans Bethe Hans Albrecht Bethe (] ; July 2, 1906 – March 6, 2005) was a German and American nuclear physicist who, in addition to making important contributions to astrophysics, quantum electrodynamics and solid-state physics, won the 1967 Nobel Prize in Physics for his work on the theory of stellar nucleosynthesis.
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Vladimir Pentkovski Vladimir Mstislavovich Pentkovski (Russian: Владимир Мстиславович Пентковский; March 18, 1946, Moscow, Soviet Union – December 24, 2012, Folsom, California, United States) was a Russian-American computer scientist, a graduate of the Moscow Institute of Physics and Technology, Ph. D., Doctor of Science, distinguished professor, winner of the highest former Soviet Union's USSR State Prize (1987), one of the leading architects of the Soviet Elbrus supercomputers and the high-level programming language El-76. At the beginning of 1990s, he immigrated to United States where he worked at Intel and led the team that developed the architecture for the Pentium III processor. According to a popular legend Pentium processors are named after Vladimir Pentkovski.
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Kim H. Veltman Kim Henry Veltman (born 5 September 1948) is a Dutch/Canadian historian of science, director of Virtual Maastricht McLuhan Institute (VMMI), consultant and author, known for his contributions in the fields of "linear perspective and the visual dimensions of science and art," new media, culture and society.
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Klaus Schulten Klaus Schulten (January 12, 1947 – October 31, 2016) was a German-American computational biophysicist and the Swanlund Professor of Physics at the University of Illinois at Urbana-Champaign. Schulten used supercomputing techniques to apply theoretical physics to the fields of biomedicine and bioengineering and dynamically model living systems.
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Max Volmer Max Volmer (] ; 3 May 1885 – 3 June 1965) was a German physical chemist, who made important contributions in electrochemistry, in particular on electrode kinetics. He co-developed the Butler–Volmer equation. Volmer held the chair and directorship of the Physical Chemistry and Electrochemistry Institute of the Technische Hochschule Berlin, in Berlin-Charlottenburg. After World War II, he went to the Soviet Union, where he headed a design bureau for the production of heavy water. Upon his return to East Germany ten years later, he became a professor at the Humboldt University of Berlin and was president of the East German Academy of Sciences.
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Martin Wilhelm Kutta Martin Wilhelm Kutta (] ; 3 November 1867 – 25 December 1944) was a German mathematician.
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Georges Lakhovsky Georges Lakhovsky (born Georgei Lakhovsky; Russian: Георгий Лаховский ; 17 September 1869 – 31 August 1942) was a Belarusian-French engineer, scientist, author and inventor. His controversial medical treatment invention, the Multiple Wave Oscillator, is described as having been used by him in the treatment of cancer.
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Victor Glushkov Victor Mikhailovich Glushkov (Russian: Ви́ктор Миха́йлович Глушко́в ; August 24, 1923 – January 30, 1982) was a Ukrainian Soviet mathematician, the founding father of information technology in the Soviet Union, and one of the founders of Cybernetics.
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Karl Bechert Karl Richard Bechert (August 23, 1901 in Nuremberg, Middle Franconia – April 1, 1981 in Weilmünster-Möttau, Hesse) was a German theoretical physicist and political leader. As a scientist, he made contributions in atomic physics.
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Clinton Paul Townsend Clinton Paul Townsend (July 31, 1868 – August 3, 1931) was chemist known for the development of the Townsend cell for the chloralkali process.
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Jean le Rond d'Alembert Jean-Baptiste le Rond d'Alembert ( ; ] ; 16 November 1717 – 29 October 1783) was a French mathematician, mechanician, physicist, philosopher, and music theorist. Until 1759 he was also co-editor with Denis Diderot of the "Encyclopédie". D'Alembert's formula for obtaining solutions to the wave equation is named after him. The Wave equation is sometimes referred to as d'Alembert's equation.
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Jean-Baptiste Biot Jean-Baptiste Biot (] ; 21 April 1774 – 3 February 1862) was a French physicist, astronomer, and mathematician who established the reality of meteorites, made an early balloon flight, and studied the polarization of light. The mineral biotite was named in his honor.
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Jacques Hadamard Jacques Salomon Hadamard ForMemRS (] ; 8 December 1865 – 17 October 1963) was a French mathematician who made major contributions in number theory, complex function theory, differential geometry and partial differential equations.
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Pavel Cherenkov Pavel Alekseyevich Cherenkov (Russian: Па́вел Алексе́евич Черенко́в ] , July 28, 1904 – January 6, 1990) was a Soviet physicist who shared the Nobel Prize in physics in 1958 with Ilya Frank and Igor Tamm for the discovery of Cherenkov radiation, made in 1934.
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Dmitri Anosov Dmitri Victorovich Anosov (Russian: Дми́трий Ви́кторович Ано́сов ; November 30, 1936 – August 5, 2014) was a Soviet and Russian mathematician, known for his contributions to dynamical systems theory.
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Sergei Sobolev Sergei Lvovich Sobolev (Russian: Серге́й Льво́вич Со́болев ; 6 October 1908 – 3 January 1989) was a Soviet mathematician working in mathematical analysis and partial differential equations. He was born in St. Petersburg, and died in Moscow.
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W. Wesley Peterson William Wesley Peterson (April 22, 1924 – May 6, 2009) was an American mathematician and computer scientist. He was best known for discovering the cyclic redundancy check (CRC), for which research he was awarded the Japan Prize in 1999.
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Adriaan Fokker Adriaan Daniël Fokker (] ; 17 August 1887 – 24 September 1972) was a Dutch physicist and musician. He was the inventor of the Fokker organ, a 31-tone equal-tempered organ.
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Vasily Vladimirov Vasilii Sergeevich Vladimirov (Russian: Васи́лий Серге́евич Влади́миров ) (9 January 1923 – 3 November 2012) was a Soviet mathematician and mathematical physicist working in the fields of number theory, mathematical physics, quantum field theory, numerical analysis, generalized functions, several complex variables, p-adic analysis, multidimensional tauberian theorems.
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Esther M. Conwell Esther Marley Conwell (May 23, 1922 – November 16, 2014) was a pioneering American chemist and physicist who studied properties of semiconductors and organic conductors, especially electron transport. She is best known for the Conwell-Weisskopf theory which elucidates how electrons travel through semiconductors, an accomplishment that helped revolutionize modern computing.
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Konstantin Buteyko Konstantin Pavlovich Buteyko (Ukrainian: Константи́н Па́влович Буте́йко ; January 27, 1923 – May 2, 2003) was the creator of the Buteyko method for the treatment of asthma and other breathing disorders.