Isaak Boruchowitsch Bersuker

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Isaac B. Bersuker

Isaak Boruchowitsch (Borissowitsch) Bersuker ( Russian Исаа́к Бо́рухович (Борисович) Берсу́кер ; born February 12, 1928 in Chisinau ) is a Soviet - Moldovan physical chemist and university professor .

Life

Isaak (Isja) Bersuker grew up as one of four children of a carpenter and caretaker in Chisinau in what was then Romanian Bessarabia . He first attended the Jewish school and then the ORT technical school.

During the German-Soviet War , Bersuker and his mother were evacuated to Azerbaijan for collective farm work . In 1945 after the family returned to Chisinau, Bersuker finished evening school, graduated from the commercial academy and began studying at the Faculty of Physics and Mathematics at the Moldovan State University in Chisinau in 1947 (in a group with WA Kowarski ). After graduating in 1952 he began postgraduate at the University of Leningrad . In 1953 he was sent as a lecturer at the Teachers College in Soroca and, after reorganization, at the Pedagogical College in Belzy . During this time he worked on his candidate dissertation , which he successfully defended at the University of Leningrad in 1957, and his doctoral dissertation , which he successfully defended in 1964.

In 1959, Bersuker entered the Institute of Chemistry of the Moldovan branch of the Academy of Sciences of the USSR (AN-USSR) as a principal scientist . He founded the quantum chemistry group, of which he became head in 1964. In 1972 he became a Corresponding Member of the Moldovan Academy of Sciences . In 1977 Bersuker's group became the Laboratory for Quantum Chemistry, of which he remained director until 1993. He also read about theoretical chemistry and molecular engineering at the Moldovan State University in Chisinau. In 1989 he became a full member of the Moldovan Academy of Sciences.

Bersuker carried out fundamental studies on the Jahn-Teller effect and pseudo -effect as well as the Renner-Teller effect, and he investigated phonon interactions and coordination connections . 1960–1962 he developed a theory of tunnel effects in many atom systems with electronic degeneracy and pseudo degeneracy ( Jahn-Teller systems ), which he confirmed in 1972.

In 1993 Bersuker left Moldova and became a professor at the University of Texas at Austin in the Faculty of Chemistry and Biochemistry and the Institute for Theoretical Chemistry.

Bersukers son Gennadi Bersuker is a chemist in Austin , and his grandson Kirill Bersuker is a biochemist and molecular biologist .

Honors

Individual evidence

  1. Anniversary Isaac Bersuker 75 . In: Advances in Quantum Chemistry . tape 44 , 2003, p. xxxiii – xxxvi , doi : 10.1016 / S0065-3276 (03) 44048-3 .
  2. ^ Academy member Isaak Borissowitsch Bersuker (Russian, accessed June 6, 2016).
  3. Isaac B. Bersuker: Pseudo-Jahn-Teller Effect — A Two-State Paradigm in Formation, Deformation, and Transformation of Molecular Systems and Solids . In: Chem. Rev. Band 113 , no. 3 , 2013, p. 1351-1390 .
  4. IB Bersuker, BJ Vekhter , I. Ya. Ogurtsov: Tunnel effects in polyatomic systems with electronic degeneracy and pseudodegeneracy . In: Sov. Phys. Uspekhi . tape 18 , no. 8 , 1975, p. 569-587 , doi : 10.1070 / PU1975v018n08ABEH004913 .

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