Modification of cobalt bis(dicarbollide) ions with nitrile groups on carbon atoms: a unique low-temperature skeletal rearrangement due to the specific electron-donor character of CN substitution.

Autor:	Tüzün EZ; Institute of Inorganic Chemistry, Czech Academy of Sciences, 25068 Řež, Czech Republic. gruner@iic.cas.cz.; Dpt. of Inorganic Chemistry, Charles University, Hlavova 2030, 12843 Prague 2, Czech Republic., Hnyk D; Institute of Inorganic Chemistry, Czech Academy of Sciences, 25068 Řež, Czech Republic. gruner@iic.cas.cz., Bavol D; Institute of Inorganic Chemistry, Czech Academy of Sciences, 25068 Řež, Czech Republic. gruner@iic.cas.cz., Litecká M; Institute of Inorganic Chemistry, Czech Academy of Sciences, 25068 Řež, Czech Republic. gruner@iic.cas.cz., Fanfrlík J; Institute of Organic Chemistry and Biochemistry, Czech Adademy of Sciences, 166 10, Prague 6, Czech Republic., Grűner B; Institute of Inorganic Chemistry, Czech Academy of Sciences, 25068 Řež, Czech Republic. gruner@iic.cas.cz.
Jazyk:	angličtina
Zdroj:	Dalton transactions (Cambridge, England : 2003) [Dalton Trans] 2024 Nov 26; Vol. 53 (46), pp. 18462-18466. Date of Electronic Publication: 2024 Nov 26.
DOI:	10.1039/d4dt02588a
Abstrakt:	Herein, we report on the synthesis and stereochemistry of mono- and isomeric dinitrile derivatives of [(1,2-C 2 B 9 H 11 ) 2 -3,3'-Co] - ions. The shape and electronic properties of CN groups can apparently surmount the strain associated with the substitution of two vicinal carbon positions. Owing to electron donation to the cage, this results in a substituent-induced rearrangement of one of the carbon atoms to the upper pentagonal ring. The molecular structure of this isomer was confirmed using sc-XRD and DFT chemical computations.
Databáze:	MEDLINE
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