Heterometallic complex of carboxylate Schiff base iron zinc and preparation method thereof
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A technology of Schiff base iron zinc and Schiff base iron, which is applied in the chemical field, can solve the problems of heterometal complex research unreported, and achieve the effects of strong photocatalytic degradation ability, good gas adsorption ability, and stable product performance
Inactive Publication Date: 2016-10-05
NORTHEAST NORMAL UNIVERSITY
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[0005] The study of heterometallic complexes based on carboxylic acid Schiff bases and iron(III)-zinc(II) has not been reported so far
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[0027] Mix 3-methyl-5-carboxysalicylaldehyde and diaminocyclohexane with tetrahydrofuran as a solvent and stir at room temperature. The molar ratio is 2:1; THF add-on is 50-100 times of the corresponding 3-methyl-5-carboxy salicylaldehyde molar weight, obtains H 4 L ligand; H 4 L 1mmol and ferric chloride hexahydrate 1mmol were stirred in 80mL of ethanol solution for 7 hours, and left still under vacuum to obtain a dark red solid, which was dispersed in water and filtered, and dried in air to obtain H 2 (Fe-L) Cl complex; Take zinc chloride 0.03mmol and H 2 (Fe-L)Cl 0.015mmol, placed in a mixed solvent of dimethylformamide (1mL) / ethanol (1mL) / water (2mL), the mixture was placed in a 10mL glass bottle, and kept at 90°C for 96 hours, and then slowly lowered to room temperature at a rate of 10°C per hour. A red needle-like crystal carboxylic acid Schiff base iron-zinc heterometal complex was obtained with a yield of 25%.
[0028] The main infrared absorption peaks are: 3418(m...
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Abstract
The invention relates to a multiple-metal complex of iron and zinc carboxylic acid Schiff base, and its preparation method, and belongs to the technical field of chemistry. The chemical formula of the complex is Zn2(Fe-L)2(mu2-O)(H2O)2].4DMF.4H2O, wherein L is a 1,2-cyclohexyldiamino-N,N'-di(3-methyl-5-carboxylsalicylaldehyde) anion, and DMF is dimethyl formamide. The complex is prepared through a solvothermal process. The complex has a strong photocatalytic degradation ability on 2-chlorophenol under irradiation of visible light, and has a good gas adsorption ability.
Description
technical field [0001] The invention belongs to the technical field of chemistry and relates to a heterometallic complex and a preparation method thereof. Background technique [0002] Metal complexes (ML) are prepared by reacting functional ligands L and metal ions M, and the formed ML can be used as a ligand to further react with other metals to form heterometallic complexes. In recent years, the preparation of heterometallic framework structures using ML as ligands has received extensive attention. These MLs have excellent coordination properties and novel structures, showing good research prospects in symmetric synthesis (X.-F.Huang , J.-X.Ma, W.-S.Liu, Inorg.Chem.2014, 53, 5922; A.Kobayashi, T.Ohba, E.Saitoh, Y.Suzuki, S.-I.Noro, H. - C. Chang, M. Kato, Inorg. Chem. 2014, 53, 2910; M. Zhao, S. Ou, C.-D. Wu, Acc. Chem. Res. 2014, 47, 1199). [0003] h 4 L is a Schiff base ligand with two carboxylic acid groups, and its inner cavity has a chelated [N 2 o 2 ] coordina...
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