| 水杨醛肟和乙酰氧肟酸钛氧簇合物的合成及光电性质 | |
| Syntheses and photoelectric properties of titanium oxo clusters assembled by salicylaldoxime and acetohydroxamic acid | |
| 摘要: 通过溶剂热合成方法，以水杨醛肟（H2Saox）和乙酰氧肟酸（H2Ahox）为染料敏化功能配体，分别以异丁酸（HiBuac）和苯基膦酸（PhPO3H2）为辅助配体，与钛酸四异丙酯（Ti （OiPr）4）反应，合成了六核钛氧簇配合物[Ti6（μ3-O）4（Saox）2（iBuac）4（OiPr）8]（1）和八核钛氧簇配合物[Ti8（μ3-O）2（Ahox）2（PhPO3）4（OiPr）16]（2）。配合物1和2均通过红外光谱、元素分析和单晶X射线衍射进行了结构表征。光谱性质表明，配合物1和2在可见光区均有吸收，其带隙分别为2.43和2.61 eV。配合物2是首个基于乙酰氧肟酸的钛氧簇，具有光催化析氢性能且速率可达140.2 μmol·g-1·h-1。 | |
| 关键词: 钛氧簇 水杨醛肟 乙酰氧肟酸 带隙 光催化析氢 | |
| 基金项目: 国家自然科学基金（No.62104005）、河南省自然科学基金（No.202300410010）和安阳工学院博士启动基金（No.BSJ2022024）资助。 | |
| Abstract: In this work, by the reaction of salicylaldoxime (H2Saox), isobutyric acid (HiBuac), and Ti(OiPr)4 the hexanuclear titanium oxo cluster (TOC) of[Ti6(μ3-O)4(Saox)2(iBuac)4(OiPr)8] (1) was solvothermally synthesized, and by the reaction of acetohydroxamic acid (H2Ahox), phenylphosphonic acid (PhPO3H2) and Ti(OiPr)4 the octa-nuclear TOC of[Ti8(μ3-O)2(Ahox)2(PhPO3)4(OiPr)16] (2) was prepared. Both of them were characterized by IR, elemental analyses, and single-crystal X-ray diffraction. Spectral experiments indicate that the two complexes have absorptions in the visible region. The band gaps of complexes 1 and 2 were 2.43 and 2.61 eV respectively. Complex 2 is the first H2Ahox-based TOCs that showed photocatalytic H2 evolution activity with the rate of 140.2 μmol·g-1·h-1. | |
| Keywords: titanium oxo clusters salicylaldoxime acetohydroxamic acid band gap photocatalytic H2 evolution | |
| 投稿时间：2023-03-29 修订日期：2023-09-28 | |
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| 郁有祝,张艳茹,郭玉华,周忠源,巫婧,张姝晗,陈阳,董要栋.水杨醛肟和乙酰氧肟酸钛氧簇合物的合成及光电性质[J].无机化学学报,2023,39(11):2231-2239. | |
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