Preparation method of tetranuclear Ru(II) polypyridine complex containing flexible isopodand bipyridyl bridging ligand

A pyridine bridge and complex technology is applied in the field of preparation of tetranuclear Ru(II) polypyridine complexes containing flexible heteropolypod bipyridine bridge ligands, and can solve the problems of difficult synthesis and the like

Inactive Publication Date: 2019-05-07
QUJING NORMAL UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on polynuclear ruthenium(II) polypyridine complexes mainly focuses on dinuclear and trinuclear complexes. Due to the difficulty of synthesis, there are few reports on tetranuclear ruthenium(II) polypyridine complexes.

Method used

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  • Preparation method of tetranuclear Ru(II) polypyridine complex containing flexible isopodand bipyridyl bridging ligand
  • Preparation method of tetranuclear Ru(II) polypyridine complex containing flexible isopodand bipyridyl bridging ligand
  • Preparation method of tetranuclear Ru(II) polypyridine complex containing flexible isopodand bipyridyl bridging ligand

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Experimental program
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Embodiment 1

[0014] Embodiment 1, the synthetic steps of complex 3 are as follows:

[0015]

[0016] Step 1: Accurately weigh compound 1 (213mg, 0.58mmol) and Ru(bpy) 2 Cl 2 2H 2 O (303mg, 0.58mmol) was added to a three-necked flask filled with 100mL of ethanol. Under the protection of nitrogen, after stirring and reacting at 85°C for 24 hours, the reactant was transferred from the three-necked flask to a round-bottomed flask, and the reaction solvent ethanol was evaporated with a rotary evaporator.

[0017] The second step: transfer the solid obtained by evaporating to dryness into a 100mL three-necked flask with 12mL glacial acetic acid, then add o-phenanthroline-5,6-dione (123mg, 0.58mmol) and ammonium acetate (908mg, 11.60 mmol). Under the protection of nitrogen, the reaction was kept at 130° C. and stirred for 8 hours. After the reaction was completed, it was cooled to room temperature, and saturated aqueous ammonium hexafluorophosphate solution was added to produce precipitat...

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Abstract

The invention provides a preparation method of a tetranuclear Ru(II) polypyridine complex containing a flexible isopodand bipyridyl bridging ligand. The method comprises the steps of firstly reactinga compound 1 with Ru(bpy)2Cl2.2H2O, reacting the product with o-phenanthroline-5,6-dione to obtain a precursor complex 2, and reacting the complex 2 with RuCl3.3H2O to obtain a complex 3. According tothe method provided by the invention, through the above synthetic process, the flexible isopodand bipyridyl bridging ligand is introduced into the tetranuclear Ru(II) polypyridine complex 3.

Description

[0001] Applicant: Qujing Normal University [0002] Inventors: Cheng Feixiang, He Chixian, Liu Teng, Shen Xianfu, Xu Jianbin, Liu Zining technical field [0003] The invention relates to a preparation method of a tetranuclear Ru(II) polypyridine complex containing a flexible isopolypod bipyridine bridge ligand. Background technique [0004] The huge potential application value of light-induced intramolecular and intermolecular electron transfer and energy transfer in the fields of artificial photosynthesis, photocatalysis, and molecular informatics has attracted widespread attention. Multinuclear metal complexes have always been the research objects of this type of molecular devices. one. Ruthenium (II) polypyridine complexes are chemically stable and have excellent optical and electrochemical properties. The study of them is helpful for simulating complex photochemical processes and providing information for the research of photophysical and photochemical devices. At pres...

Claims

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Application Information

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IPC IPC(8): C07F15/00
Inventor 成飞翔贺池先刘腾沈先福徐建斌刘自宁
Owner QUJING NORMAL UNIV
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