Bianca Tchoubar

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Born22 October 1910
DiedApril 24, 1990(1990-04-24) (aged 79)
Paris
Knownforchemist specialising in reaction mechanisms
Bianca Tchoubar
Б'янка Чубар
Born22 October 1910
DiedApril 24, 1990(1990-04-24) (aged 79)
Paris
EmployerFrench National Centre for Scientific Research
Known forchemist specialising in reaction mechanisms

Bianca Ilyinichna Tchoubar (Ukrainian: Б'янка Чубар; 22 October 1910 – 24 April 1990) was a French Ukrainian chemist specialising in reaction mechanisms.[1]

Bianca Ilyinichna Tchoubar was born on 22 October 1910 in Kharkiv, Ukraine, then part of the Russian Empire. Her family were Karaits Jews. In 1920, Tchoubar and her family left Ukraine for Paris, travelling via Constantinople and Budapest.[2][3]

In 1924, at the age of 14, Tchoubar began her studies in France. In 1931, she earned her bachelor's degree in science and in 1932, her diplôme d'étude supérieur, undertaking a Study of molecules and charged particles under her mentor, Professor Paul Freundler.[3]

Career

Tchoubar was recruited by chemist Marc Tiffeneau when the French National Centre for Scientific Research (CNRS) was set up. In 1937, she was appointed as a research intern and then became a research assistant in 1945.[2][3] During World War II, Tchoubar was involved with the French Resistance and was a lifelong communist.[3]

In 1946 Tchoubar defended her doctoral thesis Contribution à l'étude des extensions de cycles. Désamination nitreuse des aminométhyl-1 cyclanols-1 (Contribution to the study of cycle extensions. Nitrous deamination of aminomethyl-1 cyclanols-1). The chair of her examination board was physicist Edmond Bauer.[4]

Tchoubar introduced new ideas in reaction chemistry, became a senior research fellow in 1955 and in 1960 published a compendium entitled Les Mécanismes réactionnels en chimie organique[5] (Reaction Mechanisms in Organic Chemistry), which was translated into six languages.[5] The book was nicknamed "la petit Tchoubar" in honour of its usefulness.[3]

Tchoubar was appointed research director at the CNRS and became director of Group No. 12 (GR12) in Thiais. She worked there until her official retirement in 1978.[3]

Post retirement, Tchoubar retained a place in the laboratory and embarked on new areas of research: the effects of solvents on E2/SN2 competitions, and reactions.[2]

Tchoubar co-authored a book with André Loupy on Les Effets de sels en chimie organique et organométallique.[6]

From 1974 onwards, and especially after her retirement from management, Tchoubar embarked on research into transition metal chemistry, a field that was new to her. Her research was carried out in close collaboration with the group led by Alexander E. Shilov.[2][3]

Bianca Tchoubar died on 24 April 1990 in the 15th arrondissement of Paris.

Publications

Commemoration

References

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