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Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides
Published on: May 29, 2018
Synthesis and structural characterization of a dumbbell-like phenylphosphonate-stabilized Ti7-oxide cluster
Mei Yan Gao1, Xiao Xue Liu1, Wei Hui Fang1
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, People's Republic of China.
Abstract:
In recent years, crystalline polyoxotitanium clusters (PTCs) have attracted increasing attention as a new kind of promising crystalline material. In this work, a PTC stabilized by phenylphosphonate ligands, i.e. hexa-μ-isopropanolato-hexaisopropanolatodi-μ3-oxido-hexa-μ3-phenylphosphonato-heptatitanium tetrahydrate, [Ti7(μ3-O)2(O3P-Phen)6(OiPr)12]·4H2O [PTC-54; H2O3P-Phen is phenylphosphonic acid, C6H5PO(OH)2, and HOiPr is isopropanol, C3H7OH], was obtained successfully through a facile one-step solvothermal reaction. The dumbbell-like core structure of PTC-54 can be described as two trinuclear {Ti3(μ3-O)} building units combined together by six phenylphosphonate ligands and one additional Ti atom, giving rise to a Ti7 cluster. Adjacent molecules of PTC-54 are further connected through π-π interactions between the phenyl groups to form a supramolecular one-dimensional chain.
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