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Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain

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Fullerene-like Polyoxotitanium Cage with High Solution Stability.

Mei-Yan Gao¹, Fei Wang¹, Zhi-Gang Gu¹

¹State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou 350002, P. R. China.

Journal of the American Chemical Society

|February 20, 2016

Summary

This summary is machine-generated.

Researchers synthesized the largest titanium-oxo cluster, featuring a unique fullerene-like shell structure. This novel {Ti42O60} core exhibits icosahedral symmetry, similar to C60 fullerene.

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Area of Science:

Inorganic Chemistry
Materials Science
Nanotechnology

Background:

Titanium oxides are crucial materials with diverse applications.
Fullerene structures, like C60, exhibit unique properties due to their spherical, hollow cage-like nature.
The synthesis of complex, high-symmetry inorganic clusters remains a significant challenge.

Purpose of the Study:

To synthesize and characterize a novel, large titanium-oxo cluster.
To investigate the formation of fullerene-like shell structures in inorganic compounds.
To explore the structural and symmetry properties of titanium oxide clusters.

Main Methods:

Solvent-based synthesis of titanium-oxo clusters.
Electrospray ionization mass spectrometry (ESI-MS) for solution stability analysis.
High-resolution transmission electron microscopy (HR-TEM) for structural visualization.

Main Results:

Formation of the largest titanium-oxo cluster, [Ti42(μ3-O)60(OiPr)42(OH)12)](6-), with a fullerene-like Ti-O shell.
The {Ti42O60} core exhibits icosahedral (Ih) symmetry, mirroring C60 fullerene.
HR-TEM confirmed the spherical structure with an outer diameter of 1.53 nm and inner diameter of 1.05 nm.

Conclusions:

Titanium oxide can form stable, fullerene-like shell structures.
The synthesized cluster possesses high icosahedral symmetry, comparable to molecular fullerenes.
This discovery opens new avenues for designing inorganic nanomaterials with tunable properties.