Structure of a Heterobimetallic Alkoxide in a Highly Concentrated Ba, Ti Alkoxides Solution Prepared Using Methanol/2-Methoxyethanol Mixed Solvent

Abstract

The molecular structure of a heterobimetallic alkoxide formed in a highly concentrated (1.2mol/l) Ba, Ti alkoxides solution with methanol/2-methoxyethanol mixed solvent (60/40 in volume), which is suitable for preparation of BaTiO₃ ceramics via powderless sol-gel process, has been investigated using FT-IR, ¹H NMR, XANES and ICP-AES. Data obtained from the analyses indicate that reaction between barium ethoxide and titanium isopropoxide, used as the starting alkoxides, occurred to form a heterobimetallic alkoxide BaTi(OMe)₄(OEt)(OEtOMe) with a Ba/Ti ratio of 1 in the highly concentrated alkoxides solution.