Synthesis and Structure of the First Non‐Metallocene Ti III Fluoride Complex LTiF 2 ·2Me 3 SnCl Supported by a β‐Diketiminato Ligand
| Autor: | Yuri B. Kokunov, Evgeny G. Ilyin, Alojz Demsar, Jörg Magull, Mathias Noltemeyer, Grigory B. Nikiforov, Herbert W. Roesky, Hans-Georg Schmidt |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
chemistry.chemical_classification
010405 organic chemistry Inorganic chemistry chemistry.chemical_element 010402 general chemistry 01 natural sciences 0104 chemical sciences Coordination complex Inorganic Chemistry Solvent chemistry.chemical_compound Crystallography Monomer chemistry Octahedron Fluorine Molecule Fluoride Metallocene |
| Zdroj: | European Journal of Inorganic Chemistry. 2003:437-441 |
| ISSN: | 1099-0682 1434-1948 |
| DOI: | 10.1002/ejic.200390061 |
| Popis: | The TiIII dichloride complex LTiCl2 (1) and the first non-metallocene TiIII fluoride complex LTiF2·2Me3SnCl (2) supported by the β-diketiminato ligand 2-{[2-(diethylamino)ethyl]amino}-4-{[2-(diethylamino)ethyl]imino}pent-2-ene have been synthesized. Elemental analysis, mass spectrometry and X-ray structural analysis show that 1 is monomeric, neutral, and free of solvent and lithium salt. The complex adopts a pseudo-octahedral geometry with the two chlorine atoms arranged in trans position to each other. Compound 1 is soluble in common organic solvents and thermally surprisingly robust. Complex 2 was prepared using Me3SnF as a fluorinating agent. X-ray structural analysis revealed that complex 2 consists of the LTiF2 unit and two molecules of Me3SnCl coordinated through a fluorine bridge to the titanium center. The fluorine atoms in 2 are located in trans positions to each other and the geometry around the titanium atom is distorted octahedral. Elemental analysis and mass spectrometry proved that 2 releases the coordinated Me3SnCl under vacuum or during sublimation. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003) |
| Databáze: | OpenAIRE |
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