吡啶-2-甲醛肟钛氧簇合物的合成、结构调控及光电性质 |
Syntheses, Structure-Regulation, and Photoelectric Properties of 2-Pyridinecarbaldehyde Oxime Assembled Titanium Oxo Clusters |
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摘要: 通过溶剂热合成方法,以吡啶-2-甲醛肟(HPycox)和Ti(OiPr)4合成了双核钛配合物[Ti2(μ2-O)(Pycox)2(OiPr)4] (1)。通过结构分析,分别使用二苯基膦酸和苯基膦酸对其进行结构调控,成功制备了三核钛配合物[Ti3(μ2-O)2(Pycox)2(Ph2PO2)2(OiPr)4] (2)和六核钛配合物[Ti6(μ2-O)2(μ3-O)2(Pycox)2(PhPO3)4(OiPr)6]·2CH3CN (3)。配合物1~3的光学带隙分别为2.89、3.00和2.87 eV,其中配合物2的光电流密度可达0.1 μA·cm-2。 |
关键词: 钛氧簇 吡啶-2-甲醛肟 结构调控 有机膦酸 |
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)和安阳工学院校培育基金(NoYPY2019003,YPY2021005)资助 |
Abstract: [Ti2(μ2-O)(Pycox)2(OiPr)4] (1) was solvothermally synthesized by the reaction of 2-pyridinecarbaldehyde oxime (Hpycox) and Ti(OiPr)4 in a simple and general approach. Interestingly, by analyzing the structure of 1, diphenylphosphinic acid and phenylphosphonic acid were selected respectively to regulate the structure of 1, and[Ti3(μ2-O)2(Pycox)2(Ph2PO2)2(OiPr)4] (2) and[Ti6(μ2-O)2(μ3-O)2(Pycox) 2 (PhPO3)4(OiPr) 6]·2CH3CN (3) were successfully obtained. Moreover, their light absorption behaviors, band gaps, and photocurrent responses were also investigated. The band gaps of complexes 1-3 were 2.89, 3.00, and 2.87 eV, respectively. Among the three complexes, complex 2 exhibited the largest photocurrent density with the value of 0.10 μA·cm-2. |
Keywords: titanium oxo clusters 2-pyridinecarbaldehyde oxime structure regulation phosphonic acid |
投稿时间:2022-05-01 修订日期:2022-08-01 |
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郁有祝,张艳茹,郭玉华,周忠源,杨立国,李嘉琳,方黎月,乔宽宽.吡啶-2-甲醛肟钛氧簇合物的合成、结构调控及光电性质[J].无机化学学报,2022,38(11):2299-2307. |
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