Arnold, John; Woo, Hee-Gweon; Tilley, T. Don, Organometallics, 1988, vol. 7, # 9, p. 2045 - 2049
作者:Arnold, John、Woo, Hee-Gweon、Tilley, T. Don、Rheingold, Arnold L.、Geib, Steven J.
DOI:——
日期:——
Hafnium imido complexes containing silyl ligands
作者:Ivan Castillo、T. Don Tilley
DOI:10.1016/s0022-328x(01)01386-9
日期:2002.2
The hafnium imido dichloride (2,6-i-Pr2C6H3)N=Hf(THF)(2)Cl-2 (1) reacts with two equivalents of Ph3SiLi(THF)(3) to yield the corresponding disilyl complex (2,6-i-Pr2C6H3)N=Hf(THF)(2)(SiPh3)(2) (2) in low yield. Compound 2 was crystallographically characterized. The hafnium monosityl complex (2,6-i-Pr2C6H3)N=Hf(4-t-BuC5H4N)(2)Cl[Si(SiMe3)(3)] (4) was synthesized in a similar manner from (2,6-i-Pr2C6H3)N=Hf(4-t-BuC5H4N)(2)Cl-2 (3) and one equivalent of (Me3Si)(3)SiK in good yield. The Cp*-containing hafnium imido complex Cp*HfCl[mu-N(2,6-i-Pr2C6H3)]}(2) (5) was prepared by thermolysis of Cp*Hf[Si(SiMe3)(3)][NH(2,6-i-Pr2C6H3)]Cl via loss of (Me3Si)(3)SiH. Complex 5 was crystallographically characterized. Attempts to prepared derivatives of 5 with reactive sigma-bonds resulted in the formation of Cp*-cyclometallated species. (C) 2002 Elsevier Science B.V. All rights reserved.
Arnold, John; Engeler, Mary P.; Elsner, Frederick H., Organometallics, 1989, vol. 8, # 9, p. 2284 - 2286
作者:Arnold, John、Engeler, Mary P.、Elsner, Frederick H.、Heyn, Richard H.、Tilley, T. Don