Bis-hydroxylaminato group 4 half-sandwich complexes-syntheses, structures and polymerisation activity studies

Willner A, Niemeyer J, Mitzel NW (2009)
DALTON TRANSACTIONS (23): 4473-4480.

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Abstract / Bemerkung
The methylene-and ethylene-bridged bis-hydroxylamines HONMe(CH2)(n)NMeOH (n = 1, 2) were reacted with [Cp*TiCl3], [Cp*ZrCl3] and [Cp*HfCl3] in the presence of MeLi to give the complexes [Cp*TiMe{(eta(2)-ONMe)(2)CH2}] (1), [Cp*TiMe{(eta(2)-ONMeCH2)(2)}] (2), [Cp*ZrMe{(eta(2)-ONMeCH2)(2)}] (3) and [Cp*HfMe{(eta(2)-ONMeCH2)(2)}] (4). The reaction of 2 with AlMe3 afforded the adduct [Cp*TiMe{eta(2)-[O(AlMe3)NMe]CH2CH2-eta(2)-(NMeO)}] (2 center dot AlMe3). The compounds were characterised by NMR spectroscopy, elemental analyses and mass spectrometry. Their crystal structures were determined by X-ray diffraction. In each case, all four donor atoms of the [2 + 2]-dentate ligands coordinate in a eta(2)-manner to the organometallic [Cp*MMe] complex fragments. The polymerisation reactions of ethylene and propylene catalysed by 2 activated with methylalumoxane (MAO) were
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DALTON TRANSACTIONS
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23
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4473-4480
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Willner A, Niemeyer J, Mitzel NW. Bis-hydroxylaminato group 4 half-sandwich complexes-syntheses, structures and polymerisation activity studies. DALTON TRANSACTIONS. 2009;(23):4473-4480.
Willner, A., Niemeyer, J., & Mitzel, N. W. (2009). Bis-hydroxylaminato group 4 half-sandwich complexes-syntheses, structures and polymerisation activity studies. DALTON TRANSACTIONS(23), 4473-4480. doi:10.1039/b821786f
Willner, A., Niemeyer, J., and Mitzel, N. W. (2009). Bis-hydroxylaminato group 4 half-sandwich complexes-syntheses, structures and polymerisation activity studies. DALTON TRANSACTIONS, 4473-4480.
Willner, A., Niemeyer, J., & Mitzel, N.W., 2009. Bis-hydroxylaminato group 4 half-sandwich complexes-syntheses, structures and polymerisation activity studies. DALTON TRANSACTIONS, (23), p 4473-4480.
A. Willner, J. Niemeyer, and N.W. Mitzel, “Bis-hydroxylaminato group 4 half-sandwich complexes-syntheses, structures and polymerisation activity studies”, DALTON TRANSACTIONS, 2009, pp. 4473-4480.
Willner, A., Niemeyer, J., Mitzel, N.W.: Bis-hydroxylaminato group 4 half-sandwich complexes-syntheses, structures and polymerisation activity studies. DALTON TRANSACTIONS. 4473-4480 (2009).
Willner, Alexander, Niemeyer, Jochen, and Mitzel, Norbert W. “Bis-hydroxylaminato group 4 half-sandwich complexes-syntheses, structures and polymerisation activity studies”. DALTON TRANSACTIONS 23 (2009): 4473-4480.

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Structural variations and molecular dynamics of rare-earth metal complexes with the N,N-bis(2-{pyrid-2-yl}ethyl)hydroxylaminato ligand.
Hellmann BJ, Venugopal A, Mix A, Neumann B, Stammler HG, Willner A, Pape T, Hepp A, Mitzel NW., Chemistry 15(43), 2009
PMID: 19774565

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