Synthesis and properties of some titanium and zirconium benzyl derivatives

Neutral and Cationic [Bis(η1‐amidosilyl)‐η5‐cyclopentadienyl]titanium and ‐zirconium Complexes: Synthesis, X‐ray Molecular Structures and DFT Calculations

“…The tetraamide M(NMe 2 ) 4 [11] and tetrabenzyl M(CH 2 Ph) 4 [12] compounds (M ϭ Ti, Zr) were used to deprotonate the cyclopentadiene compound 1, which possesses three acidic protons, to generate the metal-coordinated cyclopentadienyl ligand.…”

“…Hydrocarbon solvents and THF were distilled from Na/benzophenone and stored under argon prior to use. 1,1-Bis(chlorodimethylsilyl)cyclopentadiene, Ti(NMe 2 ) 4 , [11] Zr(NMe 2 ) 4 , [11] Ti(CH 2 Ph) 4 , [12] Zr(CH 2 Ph) 4 [12] and B(C 6 F 5 ) 3 , [24] were prepared by previously reported methods. NMR spectra were recorded with Varian Unity FT 300 and Varian FT 500 Unity Plus instruments in Teflon-valved tubes at probe temperature (20°C 4 (0.65 g, 2.9 mmol) in toluene (70 mL) was cooled to 0°C…”

“…After alkyl abstraction by a Lewis acid {MAO, B(C 6 F 5 ) 3 [3] whereas the cyclopentadienylamido complexes provide the electronically more unsaturated 12- (12), Zr (13)] salts. All new compounds were characterized by NMR spectroscopy, and the crystal structures of 10 and 13 were studied by diffraction methods.…”

Photoinitiation study of Irgacure 784 in an epoxy resin photopolymer

“…3,10,14,[17][18][19][20] In this study we follow Ref. 19 and assume that isomerization takes place before the photocleaving of the generated isomer.…”

Photochemistry and Photophysics of Coordination Compounds

“…A number of titaniurn(IV )-comp1 exes have been described as light sensitive and some have been claimed as photoinitiators (Zucchini et al 1971;Kaeriyama, Shimura 1972). The photochemistry of bis-eye 1opentadieny1 -1itanium-dipheny 1 (1) has been extensively studied (Peng, Brubaker 1 978;Rausch et al 1"978;Tung, Brubaker 1981).…”