Trichlorido{2-[2-(η⁵-cyclopentadienyl)-2-methylpropyl]-1-trimethylsilyl-1H-imidazole-κN³}titanium(IV) tetrahydrofuran hemisolvate

Abstract

Key indicators: single-crystal X-ray study; T = 293 K; mean (C-C) = 0.005 Å; disorder in solvent or counterion; R factor = 0.040; wR factor = 0.115; data-toparameter ratio = 15.5.The title compound, [Ti(C 15 H ExperimentalCrystal data [Ti(C 15

Trichlorido(tetrahydrofuran){(1,2,3,3a,7a-η)-1-[2-(1-trimethylsilyl-1H-imidazol-2-yl-κN3)-1-methylpropyl]indenyl}zirconium(IV)

“…As it was observed earlier for Ti-analog of I (Ge et al, 2010), in a THF solution I co-exists with a mixture of Me 3 SiCl and drichloro(2-{2-[(1,2,3,3a,7a-η)-indenyl]-2-methylpropyl}-1H-imidazolido-κN 1 )zirconium(IV), (C 16 H 16 N 2 )ZrCl 2 , III, (for spectral proof, see Experimental).…”

“…For the geometric parameters of similar Zr IV complexes, see: Nifant'ev et al (1998); Paolucci et al (2003); Krut'ko et al (2004Krut'ko et al ( , 2007; Enders et al (1996); Nie et al (2008). For Ti IV analogues of the title compound, see: Ge et al (2010) and references cited therein. For procedures used in the preparation, see: Curtis & Brown (1980); Chisholm et al (1988); Diamond et al (1996); Weizmann et al (1950); Armarego & Perrin (1997).…”

2-{(E)-N-[2-(1H-Inden-3-yl)ethyl]iminomethyl}-1H-imidazole

“…For the structural parameters of 2organyl-1H-imidazoles (organic structures only, not bi-or oligocyclic, non-ionic, recent publications only), see: Lassalle-Kaiser et al (2006). For the structural parameters of Li, Ti, and Zr complexes derived from 1H-imidazol(in)-2-yl side-chainfunctionalized cyclopentadienes see: Krut'ko et al (2006); Nie et al (2008); Wang et al (2009); Ge et al (2010). For the structural parameters of 1H-imidazol(in)-2-yl side-chainfunctionalized 3-substituted 1H-indene and Li-indenide, see: Sun et al (2009Sun et al ( , 2010.…”

“…1H-Imidazol(in)-2-yl side-chain functionalized cyclopentadiene-type (Cp) ligands were introduced into the organometallic chemistry, and, particularly into that of the Group 4 transition metals, not long ago (Krut'ko et al, 2006;Nie et al, 2008;Wang et al, 2009;Sun et al, 2009;Sun et al, 2010;Ge et al, 2010). All these compounds are usually considered to be prospective precursors for catalytic systems capable to effectively polymerize ethylene and α-olefins.…”

{2-[(η5-Cyclopentadienyl)diphenylmethyl]-1H-imidazolido-κN}bis(N,N-diethylamido)titanium(IV)

“…Cyclopentadienes (Cp-s) with pendant 1H-imidazol(in)-2-yl side-chain functional groups, their mono-and di-Li salts, and group 4 transition metal complexes of general type [η 5 -Cp-(C 1 or C 2 )-imidazol(in)e)-κN]-M IV L n [M = Ti, Zr; L n = Cl 3 , (NR 2 ) 2 ] have been described previously (Krut'ko et al, 2006;Nie et al, 2008;Sun et al, 2009;Wang et al, 2009;Ge et al, 2010;Sun et al, 2010). The present contribution reports the structural investigation of the closest analogue of two Ti IV 18e -(η 5 -Cp)tris(sec-amido)-type complexes described recently by Wang et al (2009).…”