Synthesis and crystal structure of (2-methoxyethyl)-cyclopentadienyl titanium complexes

Summary New substituted cyclopentadienyl titanium complexes, Cp'TiCl₂ (1), Cp'CpTiCl₂ (2) and Cp'TiCl₃ (3) (Cp'=(2-methoxyethyl)cyclopentadienyl) have been synthesized; complexes (1) and (3) have been studied by x-ray diffraction. Complex (1) forms red-plate crytals which belong to the monoclinic space group p2₁/a with unit cell parameters:a 11.431(1),b 7.116(1),c 21.13514 Å, 99.50(1)°, V=1695.5(4)ų and Z=4. The structure of (1) is refined to the final R of 0.044 for 1833 soserved reflections. The orange octahedral crystals of (3) are monoclinic, space group P2₁/c with unit cell paranreters:a 7.896(2),b 11.015(5),c 25.213(6)Å, 92.13(2)°, V=2192(1) ų and Z=8. Refinement for 1714 observed reflections gives the final R of 0.090. The crystal sinceture of (3) shows that the ethereal oxygen atom in the side chain on the Cp ring coordinates with the ratenum atom to form a chelate ring.