Synthesis method and application method of terbium complex with fluorescence colorimetric sensing performance
A technology of terbium complexes and synthesis methods, applied in the fields of 3/13 organic compounds without C-metal bonds, compounds containing elements of group 3/13 of the periodic table, fluorescence/phosphorescence, etc., can solve the problems of biology and human life Environmental pollution and other issues, to achieve the effect of great environmental protection value and research significance
Active Publication Date: 2020-12-04
HENAN POLYTECHNIC UNIV
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On the other hand, in various chemical synthesis industries, widely used nitroaromatic compounds have also caused serious environmental pollution to organisms and human life.
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[0027] A method for synthesizing a terbium complex with fluorescence colorimetric sensing performance, the specific steps are as follows:
[0028] (1) Ligand H 4 Synthesis of L: Add 50ml of methanol and 0.35g of sodium metal into a 250ml round-bottomed flask. After completely dissolving, add 1.29g of 2,6-pyridinedicarbonitrile into it, reflux and stir at 80°C for 3h, and then add iso Add 4.11 g of niacinhydrazine to it, and continue to reflux and stir for 3 hours. After cooling, a large number of precipitates are formed, and then suction filtered and rinsed with methanol. structured as figure 1 .
[0029] (2) Synthesis of complex HPU-10: take 0.03mmol ligand H 4 L and 0.05mmol of Tb(NO 3 ) 3 ·6H 2O was added to a mixed solution of 3ml ethanol and acetonitrile (volume ratio 1:1), stirred to dissolve it, and placed in an oven at 80°C for 72 hours. After cooling, yellow blocky crystals appeared, which were terbium complexes. The schematic diagram of its crystal structure i...
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The invention relates to a terbium complex multifunctional sensory material for Zn<2+>, Cd<2+> and 2,4-dinitrophenol and cascade recognition of H2PO4<->. A specific synthesis method of the terbium complex multifunctional sensory material comprises the follow steps of: (1) synthesis of a ligand H4L: adding 50 ml of methanol and 0.35 g of metal sodium into a round-bottom flask of 250 ml, adding 1.29g of 2,6-pyridinedicarbonitrile into the round-bottom flask after dissolution is completed, performing reflux and stirring at 80 DEG C for 3 hours, then adding 4.11 g of isoniazid to the round-bottomflask, keeping reflux and stirring for anther 3 hours, performing cooling to obtain a large amount of precipitate, conducting suction filtration, and carrying out rinsing with methanol; and (2) synthesis of a complex HPU-10: adding 0.03 mmol of the ligand H4L and 0.05 mmol of Tb(NO3)3.6H2O to 3 ml of a mixed solution of ethanol and acetonitrile which are mixed at a volume ratio of 1:1, performingstirring so as to dissolve the ligand and Tb(NO3)3.6H2O, putting the obtained solution in an oven at 80 DEG C for 72 h, and performing cooling to obtain a yellow block crystal which is the terbium complex. A new synthesis method of a fluorescence sensor is found through the preparation method, heavy metal ions, nitroaromatic compounds and toxic anions can be detected effectively and quickly, andan important basis is provided for environmental protection.
Description
technical field [0001] The invention relates to a method for synthesizing and using a terbium complex with fluorescence colorimetric sensing performance, and belongs to the technical field of complex synthesis. Background technique [0002] Zn 2+ , Cd 2+ Ions are important industrial and environmental pollutants, which are teratogenic and carcinogenic. On the other hand, in various chemical synthesis industries, widely used nitroaromatic compounds have also caused serious environmental pollution to organisms and human life. Among these pollutants, since 2,4-DNP is a commonly used intermediate in the production of medicine, leather products and dyes, the high selectivity and sensitive detection of 2,4-DNP is of great significance for public health and environmental protection. In addition, there is growing interest in developing new compounds with the aim of selectively detecting H 2 PO 4 - anion because of its ubiquity in fertilizer and pharmaceutical related industrie...
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IPC IPC(8): C07F5/00C07D401/14C09K11/06G01N21/64G01N21/78
CPCC07D401/14C07F5/003C09K11/06C09K2211/182G01N21/64G01N21/6428G01N21/643G01N21/78G01N2021/6417G01N2021/6432
Inventor 李慧军徐周庆张培玲蔡红新何亚玲李晴晴张宁
Owner HENAN POLYTECHNIC UNIV