The oxalato complexes of titanium(IV)—II

Bioinorganic Chemistry of Titanium

“…Above pH 4, the wave became irreversible, but the Ti oxalate complex remained in solution . Crystal structures of Ti oxalate complexes have been determined and feature dimeric Ti(III) structures with a bridging oxalate and distorted trigonal bipyramidal Ti ions with a second bidentate oxalate and three bound waters. , Monomeric bis- and trisoxalate Ti complexes have also been crystallographically characterized, and the oxalate acts as a bidentate ligand for Ti(III) in both. , Mononuclear Ti(IV) oxalate species, of the form Ti(OH) 2 (C 2 O 4 ) 2 2‑ , have been characterized in solution and can be precipitated with lead to form lead titanyl oxalates . Many polynuclear Ti oxalate species are of the form M 2 [TiO(ox) 2 ]· n H 2 O, where M includes a number of alkali metals or ammonium, some of which are commercially available.…”

Synthesis of Uniform Anatase TiO2 Nanoparticles by Gel–Sol Method

“…Ti(IV) ion is known to form complexes with a wide variety of anions and other complexing agents, such as hydroxide (3)(4)(5)(6)(7)(8)(9)(10)(11)(12), fluoride (12)(13)(14)(15)(16), sulfate (3,4,17,18), phosphate (11,19,20), chloride (4,13,21), carbonate (22), hydrogen peroxide (23,24), oxalate (25)(26)(27)(28), citrate (29)(30)(31), lactate (31), tartrate (29,32,33), malate (34,35), ammonia (11,12), amines (36), 8-hydroxyquinoline (9,24,29,37,38), thenoyltrifluoroacetone (9, 10), etc. Relevant textbooks (39), reviews …”