TY - JOUR
T1 - Chloro- and alkyltitanium complexes of a new dianionic ancillary ligand: A linked amidinate-amide
AU - Meerendonk, van, W.J.
AU - Schröder, K.
AU - Brussee, E.A.C.
AU - Meetsma, A.
AU - Hessen, B.
AU - Teuben, J.H.
PY - 2003
Y1 - 2003
N2 - The lithium amidinate [Me3SiNC(Ph)N(CH2)3N(Me)SiMe3]Li(THF) (2), with a pendant methyl(trimethylsilyl)amine functionality, was prepared and found to react with [TiCl4(THF)2] to give the titanium amidinate-amide dichloride complex [2,1-Me3SiNC(Ph)N(CH2)3NMe]TiCl2 (3) by elimination of LiCl and Me3SiCl. The elimination of Me3SiCl from the cyclopentadienyl derivative Cp[2-Me3SiNC(Ph)N(CH2)3N(SiMe3)Me]TiCl2 (5) to give Cp[2,1-Me3SiNC(Ph)N(CH2)3NMe]TiCl (4) is much less favorable, and was found to be readily reversible. Dialkyltitanium complexes [2,1-Me3SiNC(Ph)N(CH2)3NMe]Ti(CH2R)2 [R = Ph (6), SiMe3 (7)] were prepared, but could not be activated for catalytic ethene polymerization.
AB - The lithium amidinate [Me3SiNC(Ph)N(CH2)3N(Me)SiMe3]Li(THF) (2), with a pendant methyl(trimethylsilyl)amine functionality, was prepared and found to react with [TiCl4(THF)2] to give the titanium amidinate-amide dichloride complex [2,1-Me3SiNC(Ph)N(CH2)3NMe]TiCl2 (3) by elimination of LiCl and Me3SiCl. The elimination of Me3SiCl from the cyclopentadienyl derivative Cp[2-Me3SiNC(Ph)N(CH2)3N(SiMe3)Me]TiCl2 (5) to give Cp[2,1-Me3SiNC(Ph)N(CH2)3NMe]TiCl (4) is much less favorable, and was found to be readily reversible. Dialkyltitanium complexes [2,1-Me3SiNC(Ph)N(CH2)3NMe]Ti(CH2R)2 [R = Ph (6), SiMe3 (7)] were prepared, but could not be activated for catalytic ethene polymerization.
U2 - 10.1002/ejic.200390059
DO - 10.1002/ejic.200390059
M3 - Article
SP - 427
EP - 432
JO - European Journal of Inorganic Chemistry
JF - European Journal of Inorganic Chemistry
SN - 1434-1948
IS - 3
ER -