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Triazinyl rare earth complex nanomaterial and preparation method and application thereof

A technology of rare earth complexes and nanomaterials, which is applied in the direction of nanotechnology, nanotechnology, and material electrochemical variables. It can solve the problems of limited types and quantities of chiral stationary phases, compounds that cannot be directly separated and analyzed, and high instrument costs. The method is simple, the sensitivity is high, and the effect of the preparation method is convenient

Inactive Publication Date: 2017-02-22
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Direct enantiomeric analysis can be achieved by designing chiral stationary phases and chiral additives. HPLC is currently the dominant chiral analysis method, but the cost of equipment is high, the types and quantities of chiral stationary phases are limited, and column efficiency is limited. low, and many compounds cannot be directly separated and analyzed,

Method used

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  • Triazinyl rare earth complex nanomaterial and preparation method and application thereof
  • Triazinyl rare earth complex nanomaterial and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1 Preparation of triazinyl tricarboxylic acid H 3 L

[0029] To 0.045mol of L-valine, add 20mL of water to mix, continue to add 6.0g of sodium hydroxide, ultrasound to form a clear sodium L-valine solution; another 0.015mol of cyanuric chloride, add 20ml Water, start stirring and ice-bath cooling to form a white turbid liquid; add L-valine sodium solution dropwise to the turbid liquid, continue the ice-bath reaction for 1 hour after the addition, then react at room temperature for 2 hours, warm to 110°C and reflux overnight ; Cool to room temperature, add hydrochloric acid to neutralize to pH 2, suction filter, and wash with ethanol and a small amount of water, the white solid obtained is dried at 80 ℃, that is, the triazinyl tricarboxylic acid ligand H 3 L, the yield is 76-80%.

Embodiment 2

[0030] Example 2 Preparation of triazinyl rare earth complex nanomaterial

[0031] To 0.2 mmol triazinyl tricarboxylic acid ligand H 3 Add 0.6 mL of KOH aqueous solution with a mass fraction of 6.25% to L, and dissolve it by ultrasound; take another 0.2 mmol of cerium nitrate hexahydrate and dissolve it in 0.4 mL of water; blend the two solutions and ultrasound for 10 seconds to obtain a white inverted For a non-flowing gel, activate the gel at 80°C for 3 days; wash it three times with 2 mL of ethanol and centrifuge to obtain a solid powder, which is dried at 40-60°C to prepare a triazinyl rare earth complex nanomaterial. The yield was 65%.

Embodiment 3

[0032] Example 3 Preparation of nanomaterials of triazinyl rare earth complexes

[0033] To 0.2mmol triazinyl tricarboxylic acid ligand H 3 In L, add 1.8 mL of KOH aqueous solution with a mass fraction of 6.25% and dissolve it by ultrasonic; take another 0.26 mmol of cerium nitrate hexahydrate and dissolve in 1.2 mL of water; blend the two solutions and ultrasonic for 30 seconds to obtain a white inverted For a non-flowing gel, activate the gel at 80°C for 3 days; wash it with 2-6mL of ethanol three times and centrifuge to obtain a solid powder, which is dried at 40-60°C to prepare a triazinyl rare earth complex nano Material, the yield is 73%;

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Abstract

The invention discloses a hierarchical porous triazinyl rare earth complex {[CeL(H2O)2].2H2O}n nanomaterial and a preparation method and application thereof. A gel-thermal aging process is adopted to ultrasonically prepare the hierarchical porous metal-organic frametwork complex {[CeL(H2O)2].2H2O}n nanomaterial; the material can modify an electrochemical working electrode to prepare a chiral triazinyl rare earth complex nanomaterial sensor; and a three-electrode system can be adopted to conveniently test the content of (R)-(+)-1-phenethylamine and (S)-(-)-1-phenethylamine enantiomers.

Description

Technical field [0001] The invention relates to a triazine-based rare earth complex nano material and a preparation method and application thereof, belonging to the technical field of nano materials, metal organic complexes and chirality detection. Background technique [0002] In stereochemistry, molecules that are mirror images of each other and cannot overlap are called chiral molecules. These two compounds are also called enantiomers, and drugs with chiral molecular characteristics are called chiral drugs. Modern pharmacology believes that the absorption, distribution, metabolism, and biological activity of drugs are generally produced by interacting with receptors, enzymes, and proteins in the body. Such targets are generally chiral molecules with three-dimensional structures. When a chiral drug is introduced into an organism, different chiral receptors, enzymes, and proteins in the organism can recognize or compete with the drug enantiomers of different configurations. If ...

Claims

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Application Information

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IPC IPC(8): C07D251/70B82Y30/00G01N27/48
CPCB82Y30/00C07D251/70G01N27/48
Inventor 王志玲董彦芳刘志莲崔玉杨小风郑鲁沂
Owner UNIV OF JINAN
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