text: Alcohols react with  to give alkoxides with the formula  (R = alkyl, n = 1, 2, 4). As indicated by their formula, these alkoxides can adopt complex structures ranging from monomers to tetramers. Such compounds are useful in materials science as well as organic synthesis. A well known derivative is titanium isopropoxide, which is a monomer. Titanium bis(acetylacetonate)dichloride results from treatment of titanium tetrachloride with excess acetylacetone:
  Organic amines react with  to give complexes containing amido (-containing) and imido (-containing) complexes. With ammonia, titanium nitride is formed. An illustrative reaction is the synthesis of tetrakis(dimethylamido)titanium , a yellow, benzene-soluble liquid: This molecule is tetrahedral, with planar nitrogen centers.
  Complexes with simple ligands
  is a Lewis acid as implicated by its tendency to hydrolyze. With the ether THF,  reacts to give yellow crystals of . With chloride salts,  reacts to form sequentially ,  (see figure above), and . The reaction of chloride ions with  depends on the counterion.  and  gives the pentacoordinate complex , whereas smaller  gives . These reactions highlight the influence of electrostatics on the structures of compounds with highly ionic bonding.
  Redox
  Reduction of  with aluminium results in one-electron reduction. The trichloride () and tetrachloride have contrasting properties: the trichloride is a colored solid, being a coordination polymer, and is paramagnetic. When the reduction is conducted in THF solution, the Ti(III) product converts to the light-blue adduct .