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Organotitanium compounds in organometallic chemistry contain carbon to titanium chemical bonds. Organotitanium chemistry is the science of organotitanium compounds describing their physical properties, synthesis and reactions. They are reagents in organic chemistry
Additional recommended knowledge
Although the first attempt at an organotitanium compound dates back to 1861, it took until 1953 for the first such compound to arrive. In that year titanium phenyl-tri(isopropoxide) was prepared by Herman and Nelson from titanium isopropoxide, phenyllithium and titanium(IV) chloride. Titanocene dichloride was invented in 1954 and the first methyltitanium compounds were introduced in 1959. Ziegler-Natta catalysts as a major commercial application soon followed for which the Nobel Prize in Chemistry of 1963 was awarded.
The titanium electron configuration ([Ar]3d24s2) resembles that of carbon and like carbon the +4 oxidation state dominates and like carbon compounds, those of titanium have a tetrahedral molecular geometry. Their bond lengths are much longer than that of C-C bond, with a recorded 210 picometer for the Ti-C bond in tetrabenzyltitanium. Simple tetraalkyltitanium compounds are monomers in solutions and in the gas-phase while their tetra-alkoxy counterparts can be tetrameric.
Due to its low electronegativity, Ti-C bonds are very polarized towards carbon and in many titanium compounds the carbon atom behaves as a carbanion. Organotitanium compounds are lewis acids with vacant coordination sites which can be occupied by forming octahedral complexes with bidentate ligands such as bipy.
Organotitanium compounds are important reagents in organic chemistry.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Organotitanium_compound". A list of authors is available in Wikipedia.|