Revising the chemistry of κ2-dppe-closo-RuC2B9H11 fragment: Synthesis of novel diamagnetic complexes and its transformations

Zimina, A.M.; Knyazeva, N.A.; Balagurova, E.V.; Dolgushin, F.M.; Somov, N.V.; Vorozhtsov, D.L.; Malysheva, Y.B.; Grishin, I.D.

Авторы: Zimina A.M., Knyazeva N.A., Balagurova E.V., Dolgushin F.M., Somov N.V., Vorozhtsov D.L., Malysheva Yu B., Grishin I.D.
Журнал: Journal of Organometallic Chemistry
Год издания: 2021
Издательство: Elsevier BV
Местоположение издательства: Netherlands
Номер статьи: 121908
DOI: 10.1016/j.jorganchem.2021.121908
Аннотация: Anovel facile way of synthesis of closo -ruthenacarboranes with chelate 1,2-bis(diphenylphosphino)ethane (dppe) with high yields was proposed. It was found that the interaction of the three-bridged 5,6,10-{Cl(Ph 3 P) 2 Ru}-[5,6,10-( μ-H) 3 -10-H- exo - nido -7,8-C 2 B 9 H 10 ] ( 1 ) with dppe in acetonitrile or CH 2 Cl 2 /acetonitrile mixture leads to the formation of novel diamagnetic ruthenacarborane cluster 3- С NMe-3,3-[ κ2 -dppe]- closo -3,1,2-RuC 2 B 9 H 11 ( 2 ) along with some amount of ionic compound [ trans - (CH 3 CN)RuCl(dppe) 2 ] + [C 2 B 9 H 12 ] −( 3 ) which may be also converted to 2 increasing its total yield. The reaction of 2 bearing divalent ruthenium with carbon tetrachloride or HCl gives the known 17-electron paramagnetic complex 3- С l-3,3-[ κ2 -dppe]- closo -3,1,2-RuC 2 B 9 H 11 ( 4 ). . The detailed investigation of the pre- viously described method of synthesis of 4 from 3-H-3Cl-3,3-(PPh 3 ) 2 - closo -3,1,2-RuC 2 B 9 H 11 ( 5 ) allowed us to characterize the forming by-products as 3-PPh 3 -3,3,8-(Ph 2 P(CH 2 ) 2 PPh- μ-(C 6 [H 4 - о )- closo -3,1,2- RuC 2 B 9 ]H 10 ( 6 ) and 3-[ κ1 -dppe]-3,3-[ κ2 -dppe]- closo -3,1,2-RuC 2 B 9 H 11 ( 7 ). The obtained ruthenacarborane clusters undergo reversible Ru(II)/Ru(III) transition. It was shown that the complexes 2, 4 and 6 show good activity as catalysts for Atom Transfer Radical Polymerization of methyl methacrylate.
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№	Имя	Описание	Имя файла	Размер	Добавлен
1.	Grishin_Ru.pdf		Grishin_Ru.pdf	1,6 МБ	6 июля 2021 [BalagurovaEV]
2.	eksp.zakl..JPG		eksp.zakl..JPG	11,4 МБ	7 июля 2021 [BalagurovaEV]

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Интеллектуальная Система Тематического Исследования НАукометрических данных

Revising the chemistry of κ2-dppe-closo-RuC2B9H11 fragment: Synthesis of novel diamagnetic complexes and its transformationsстатья

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