Allyl derivatives of [{Ti(eta5-C5Me5)(mu-O)Cl)}3]: X-ray crystal structure of [{Ti(eta5-C5Me5)(mu-O)(CH2CH=CHMe)}3].

Reactions of [{Ti(η5-C5Me5)(μ-O)Cl}3] (1) with Grignard reagents, RMgCl (R = allyl (CH2CHCH2), crotyl (CH2CHCHMe)), in diverse ratios and conditions allow the characterization of the allyl oxotrimers [{Ti(η5-C5Me5)(μ-O)}3RnCl3−n] (n = 3, R = allyl, 2; n = 1, R = allyl, 4; n = 2, R = allyl, 5; n =...

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Detalles Bibliográficos
Autores: Andrés Herranz, Román|||0000-0002-6215-8116, Galajov Garmize, Miguel, Gómez Sal, Pilar|||0000-0002-9279-210X, Martín Alonso, Avelino|||0000-0002-9776-9670, Mena Montoro, Miguel|||0000-0001-7456-1212, Santamaría Angulo, Cristina|||0000-0003-2410-961X
Tipo de recurso: artículo
Fecha de publicación:1996
País:España
Institución:Universidad de Alcalá (UAH)
Repositorio:e_Buah Biblioteca Digital Universidad de Alcalá
Idioma:inglés
OAI Identifier:oai:ebuah.uah.es:10017/63170
Acceso en línea:http://hdl.handle.net/10017/63170
https://dx.doi.org/10.1016/S0022-328X(96)06546-1
Access Level:acceso abierto
Palabra clave:Allyl
Oxide
Titanium
Química
Chemistry
Descripción
Sumario:Reactions of [{Ti(η5-C5Me5)(μ-O)Cl}3] (1) with Grignard reagents, RMgCl (R = allyl (CH2CHCH2), crotyl (CH2CHCHMe)), in diverse ratios and conditions allow the characterization of the allyl oxotrimers [{Ti(η5-C5Me5)(μ-O)}3RnCl3−n] (n = 3, R = allyl, 2; n = 1, R = allyl, 4; n = 2, R = allyl, 5; n = 3, R = crotyl, 7). The complexes [{Ti(η5-C5Me5)(μ-O)}3(π-C3H5)3] (2) and [{Ti(η5-C5Me5)(μ-O)}3(π-C3H5)2Cl] (5) undergo thermal rearrangements, in a regio- and stereoselective way, to give the derivatives [{Ti(η5-C5Me5)(μ-O)}3(μ2-CH2CH(CH2CHCH2)CH2}X]X = allyl (3) and X = Cl (6) respectively. These processes involve the migration of one allyl group to the β-carbon of the adjacent allyl ligand and the formation of a 2-allyl-1,3-propanediyl unit bridging two titanium atoms. The crystal structure of [{Ti(η5-C5Me5)(μ-O)}3(σ-CH2CHCHMe3] (7) has been studied by X-ray crystallography and can be described as three Ti(η5-C5Me5)(σ-crotyl) units linked through oxygen bridges forming a nearly planar Ti3O3 ring.

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