The preparation of BaTiO 3 preceramic powders by calcination of barium titanium coordination complexes as opposed to BaCO 3 /TiO 2 mixtures offers advantages in terms of processibility and phase purity that are welldocumented. 2 The chemistry of the complexes employed is far from simple, however. Preparation of barium titanyl oxalate, 3 BaTiO(C 2 O 4 ) 2 ‚5H 2 O, requires strict control of reaction temperature, reaction time, and solution composition if material with the proper stoichiometry is to be obtained. 4 Barium titanium citrate, 5 BaTi(C 6 H 6 O 7 ) 3 ‚6H 2 O, can easily be prepared in pure form but utilizes a complex organic ligand. Finally, barium titanium catecholate, 6 BaTi(C 6 H 4 O 2 ) 3 ‚3H 2 O, requires a multistep preparation involving either concentrated sulfuric acid or equally corrosive TiCl 4 , while barium titanium alkoxides 7 and phenoxides 8 require inert-atmosphere techniques for their preparation. 9 We recently reported a new barium titanium glycolate complex, BaTi(C 2 H 4 O 2 ) 3 ‚4C 2 H 6 O 2 ‚H 2 O, 8 which is easily prepared from simple starting materials using benchtop procedures developed by others for the synthesis of analogous complexes BaSi(C 2 H 4 O 2 ) 3 ‚3.
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