RT info:eu-repo/semantics/article
T1 Insertion of isocyanides into zirconium-alkyl bonds of di-ansa-zirconocene complexes. X-ray molecular structure of [Zr{(SiMe2)2(η5-C5H3))Cl(η2-C(i-Pr)N(2,6-Me2C6H3)}]
A1 Barriola, Antonio M.
A1 Cano Sierra, Ana María
A1 Cuenca Agreda, José Tomás
A1 Fernández Álvarez, Francisco José
A1 Gómez Sal, Pilar
A1 Manzanero Castillo, Antonio
A1 Royo Gracia, Pascual
K1 Zirconium
K1 Dicyclopenladicnyl
K1 Iminoacyl
K1 Ciencia
K1 Química inorgánica
K1 Science
K1 Chemistry, inorganic
AB New dicyclopentadienyl iminoacyl zirconium complexes have been prepared and characterized by NMR spectroscopy. The reaction of [Zr{SiMe2)2(η5-C5H3)2)Me2] with CNR (R  2,6-Me2C6H3, t-Bu) yields [Zr((SiMe2)2(η5-C5H3)2Me(η2-CMeNR)] (R = 2,6-Me2C6H3, t-Bu), which reacts with a stoichiometric amount of water to give the μ-oxo dimers [Zr{(SiMe2)2(η5-C5H3)2}(η2-CMeNR)]2(μ-O) (R = 2,6-Me2C6H3, t-Bu). The chloro neophyl complex [Zr{(SiMe2)2(η5-C5H3)2}Cl(CH2CMe2Ph)] and other β-hydrogen containing zirconium chloro alkyls [Zr{(SiMe2)2(η5-C5H3)2}CIR] (R  Et, n-Pr, i-Pr)_ with CN(2,6-Me2C6H3) to yield the related chloro iminoacyl complexes [Zr{(SiMe2)2(η5-C5H3)2)Cl}η2-CRN(2,6-Me2C6H3)}] (R  Et, n-Pr, i-Pr), whereas no reaction was observed when CN(t-Bu) was used. All the new iminoacyl complexes were characterized by 1H and 13C NMR spectroscopy and the X-ray molecular structure of [Zr{(SiMe2)2(η5-C5H3)2)Cl{η2-C(i-Pr)N(2,6-Me2C6H3)}] studied by diffraction methods to prove the expected ‘inside’ coordination of the iminoacyl nitrogen atom.
PB Elsevier
SN 0022-328X
YR 1997
FD 1997
LK http://hdl.handle.net/10017/4432
UL http://hdl.handle.net/10017/4432
LA eng
NO BID-CONICIT (Venezuela)
DS MINDS@UW
RD 18-abr-2024