American Chemical Society
ic6b00129_si_001.cif (234.29 kB)

Small Titanium Oxo Clusters: Primary Structures of Titanium(IV) in Water

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posted on 2016-03-18, 11:37 authored by Guanyun Zhang, Jie Hou, Chen-Ho Tung, Yifeng Wang
For sol–gel synthesis of titanium oxide, the titanium­(IV) precursors are dissolved in water to form clear solutions. However, the solution status of titanium­(IV) remains unclear. Herein three new and rare types of titanium oxo clusters are isolated from aqueous solutions of TiOSO4 and TiCl4 without using organic ligands. Our results indicate that titanium­(IV) is readily hydrolyzed into oxo oligomers even in highly acidic solutions. The present clusters provide precise structural information for future characterization of the solution species and structural evolution of titanium­(IV) in water and, meanwhile, are new molecular materials for photocatalysis.