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Synthesis of cationic niobocene imido derivatives

dc.contributor.authorHierro, Isabel del
dc.contributor.authorFajardo, Mariano
dc.contributor.authorGarcés, Andrés
dc.contributor.authorGómez-Ruiz, Santiago
dc.contributor.authorPérez, Yolanda
dc.contributor.authorPrashar, Sanjiv
dc.contributor.authorAntiñolo, Antonio
dc.contributor.authorOtero, Antonio
dc.contributor.authorLópez-Mardomingo, Carmen
dc.descriptionPresented in the XVth FECHEM, Conference on Organometallic Chemistry. Zurich
dc.description.abstractFollowing from our previous work in the synthesis and reactivity of niobium imido complexes,1 we have studied the preparation of cationic derivatives. The reduction of [Nb(=NPh)(eta5-C5H4SiMe3)2Cl] gives the short-lived niobocene(IV) radical [Nb(=NPh)(eta5-C5H4SiMe3)2. which was rapidly oxidized to the niobocene(V) cationic species [Nb(=NPh)(eta5-C5H4SiMe3)2(L)]+ (L = CO, ButNC) by the reaction with [Fe(eta5-C5H5)2][BPh4]. In a similar manner, the ansa-niobocene compound [Nb(=NBut){Me2Si(eta5-C5Me4)(eta5-C5H4)}(ButNC)][BPh4] was synthesized. However, in the attempted reduction of [Nb(=NBut){Me2Si(eta5-C5H4)2}Cl], the expected radical species was not observed. Instead the niobocene (V) imido dimer product was identified. The reaction with H2 and I2 gave [Nb(=NBut){Me2Si(eta5-C5H4)2}H] and [Nb(=NBut){Me2Si(eta5-C5H4)2}I],
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.titleSynthesis of cationic niobocene imido derivativeses
dc.subject.unesco23 Químicaes
dc.description.departamentoQuímica Inorgánica y Analítica

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