Ruthenium Complexes Based on C2B9-nido-Carborane and Tridentate Phosphorus- and Nitrogen-Containing Ligands

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Resumo

Reaction of bis(2-(diphenylphosphino)ethyl)benzylamine (PNP) and bis(2-methylpyridyl)benzylamine (NNN) with known closo-ruthenacarborane [3-H-3-Cl-3,3-(PPh3)2-3,1,2-RuC2B9H11] (1) leads to the formation of new ruthenium carborane complexes 3,3,3-(bis(2-(diphenylphosphino)ethyl)benzylamine)-closo-3,1,2-RuC2B9H11 (2) and 3,3,3-(bis(2-methylpyridyl)benzylamine)-pseudocloso-3,1,2-RuC2B9H11 (3), respectively. The resulting complexes have been studied by NMR and IR spectroscopy and time-of-flight MALDI MS. Geometry optimization of complex 2 obtained for the first time by quantum-chemical modeling reduces to the closo-configuration, while complex 3 is stable both in closo and pseudocloso forms. Using single-crystal X-ray diffraction, it has been found that complex 2 has a closo structure, whereas 3 has a pseudocloso structure. A study of the electrochemical properties showed that complexes 2 and 3 are capable of reversible oxidation.

Sobre autores

A. Kal’tenberg

Lobachevsky State University of Nizhny Novgorod

Email: grishin_i@ichem.unn.ru
603022, Nizhny Novgorod, Russia

A. Bashilova

Lobachevsky State University of Nizhny Novgorod

Email: grishin_i@ichem.unn.ru
603022, Nizhny Novgorod, Russia

N. Somov

Lobachevsky State University of Nizhny Novgorod

Email: grishin_i@ichem.unn.ru
603022, Nizhny Novgorod, Russia

Yu. Malysheva

Lobachevsky State University of Nizhny Novgorod

Email: grishin_i@ichem.unn.ru
603022, Nizhny Novgorod, Russia

I. Grishin

Lobachevsky State University of Nizhny Novgorod

Autor responsável pela correspondência
Email: grishin_i@ichem.unn.ru
603022, Nizhny Novgorod, Russia

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Declaração de direitos autorais © А.А. Кальтенберг, А.Д. Башилова, Н.В. Сомов, Ю.Б. Малышева, И.Д. Гришин, 2023