| 19893229 |
Dols TS, Spaniol TP, Okuda J: Titanium complexes with sulfur-linked bis (phenolate) ligands. . Acta Crystallogr C. 2009 Nov;65(Pt 11):m443-6. Epub 2009 Oct 24.
High-quality crystals of two bis (phenolate) titanium complexes, namely dichlorido{4,4'-dimethyl-2,2'-[cyclohexane-1,2-diylbis (sulfanediyl)] diphen olato}titanium (IV), [Ti (C (20) H (22) O (2) S (2)) Cl (2)], (I), and dichlorido{2,2'-[cyclohexane-1,2-diylbis (sulfanediyl)] diphenolato}titanium (IV), [Ti (C (18) H (18) O (2) S (2)) Cl (2)], (II), were obtained by reactive crystallization. Depending on the solvent, compound (II) was obtained as unsolvated (IIa) or as the toluene hemisolvate, [Ti (C (18) H (18) O (2) S (2)) Cl (2)].0.5C (7) H (8), (IIb). These systems without bulky substituents on the aromatic phenolate rings serve as ideal model compounds for precatalysts. The excellent X-ray diffraction data will help clarify the nature of the mismatched interactions between the soft S atoms within the ligand and the hard titanium center. Molecule (I) has crystallographic C (2) symmetry. |
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