Choosing between Ti(II) and Ti(III): selective reduction of titanocene dichloride by elemental lanthanides.

Autor:	Bousrez, Guillaume, Harakat, Dominique, Chevreux, Sylviane, Déchamps-Olivier, Isabelle, Jaroschik, Florian
Předmět:	HETEROBIMETALLIC complexes CHEMICAL reduction COUPLING reactions (Chemistry) RARE earth metals ELECTRON paramagnetic resonance spectroscopy
Zdroj:	Dalton Transactions: An International Journal of Inorganic Chemistry; 10/7/2024, Vol. 53 Issue 37, p15595-15601, 7p
Abstrakt:	The reduction of titanocene dichloride Cp2TiCl2 with lanthanide metals has led to the discovery of a surprising lanthanide effect: while with most lanthanides, a divalent [Cp2Ti] equivalent was obtained, the use of samarium or ytterbium only led to the reduction to trivalent [Cp2TiCl]-type complexes, including the structurally characterized heterobimetallic complex [Cp2Ti(μ-Cl)2SmCl2(THF)3]. These results were corroborated by reactivity studies (alkyne coupling and radical reactions), EPR spectroscopy and electrospray mass spectrometry, providing new insights into the reduction chemistry of lanthanide metals. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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