Synthesis,Structure and Light-Driven H2 Production of a {Ti21} Titanium-Oxo Cluster Featuring Pentagonal {Ti(Ti5)} Motifs |
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| Authors: | Yan Song Shi-Yi Liu Cai-Hong Li Wei-Chao Chen Kui-Zhan Shao Prof. Chao Qin Prof. Xin-Long Wang Prof. Zhong-Min Su |
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| Affiliation: | 1. Key Laboratory of Polyoxometalate and, Reticular Material Chemistry of Ministry of Education, Northeast Normal University, 130024 Changchun, P. R. China;2. State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, College of Chemistry, Jilin University, 130021 Changchun, P. R. China |
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| Abstract: | Pentagonal {Ti(Ti5)} motifs play a crucial role during the assembly of novel titanium-oxide clusters (TOCs), whose development is still in its infancy. In this work, an unprecedented TOC [(CH3)2NH2]2[Ti21O29(OiPr)12(DMF)6(SO4)8] ({Ti21}) based on {Ti(Ti5)} motifs had been obtained under hydrothermal conditions. It possesses ‘fused’ dimeric {Ti11} as well as trimeric {Ti12} subunits featuring unexpected bonding modes based on pentagonal {Ti(Ti5)} motifs. Furthermore, {Ti21} exhibits good water and solvent tolerance. As an atomically precise TOCs-based semiconductor photocatalyst, {Ti21} exhibits appreciable photocatalytic hydrogen evolution activity with an optimal hydrogen generation rate of 191.94 μmol/g/h under UV/Vis light. This work provides significant advances and favorable models for the further synthesis of TOCs with unique structure and functionality. |
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| Keywords: | cluster compounds pentagonal motif photocatalysis surface ligands titanium |
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