Synthesis of bimetallic barium titanium alkoxides as precursors for electrical ceramics. Molecular structure of the new barium titanium oxide alkoxide Ba[sub 4]Ti[sub 13]([mu][sub 3]-O)[sub 12]([mu][sub 5]-O)[sub 6]([mu][sub 1]-[eta][sup 1]-OCH[sub 2]CH[sub 2]OCH[sub 3])[sub 12]([mu][sub 1],[mu][sub 3]-[eta][sup 2]-OCH[sub 2]CH[sub 2]OCH[sub 3])[sub 12]

Journal Article · Wed Aug 21 04:00:00 EDT 1991 · Inorganic Chemistry; (United States)

DOI:https://doi.org/10.1021/ic00017a003· OSTI ID:6924147

Campion, J F; Payne, D A; Chae, H K; Maurin, J K; Wilson, S R ^[1]

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1. Univ. of Illinois, Urbana (United States)

Complex alkoxides are promising precursors for the preparation of fine ceramic powders, thin-layer devices, and fibers. Hydrolysis and condensation of alkoxides result in the formation of oligomeric structures in solution and in the eventual formation of a gel. The formation of heterometallic species can lead to chemical homogeneity at the molecular level. Although there are numerous examples of bimetallic alkoxides in the literature, less is known regarding the structure of partial hydrolysis products. A better understanding of the sol-gel processing of ceramics could result from a study of hydrolysis and polycondensation reactions in complex alkoxides. The investigation described herein has as its objective the study of the synthesis and hydrolysis of heterometallic alkoxide precursors for barium titanate ceramics. For example, BaTiO[sub 3] is used in high dielectric constant capacitor materials, and Ba[sub 4]Ti[sub 13]O[sub 30], in high-frequency resonators.

• DOE Contract Number: FG02-91ER45439
• OSTI ID: 6924147
• Journal Information: Inorganic Chemistry; (United States), Journal Name: Inorganic Chemistry; (United States) Vol. 30:17; ISSN 0020-1669; ISSN INOCAJ
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKALINE EARTH METAL COMPOUNDS
ALKOXIDES
BARIUM COMPOUNDS
CERAMICS
CHEMICAL PREPARATION
COHERENT SCATTERING
DATA
DIFFRACTION
EXPERIMENTAL DATA
INFORMATION
MAGNETIC RESONANCE
MOLECULAR STRUCTURE
NUCLEAR MAGNETIC RESONANCE
NUMERICAL DATA
RESONANCE
SCATTERING
SYNTHESIS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION