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Three dimensional nano-tube shaped dysprosium manganese hetero metal type magnesium ion fluorescent probe and preparation method

A three-dimensional nano, fluorescent probe technology, applied in chemical instruments and methods, luminescent materials, material inspection products, etc., can solve the problems of difficult to predict and control products with high coordination numbers, achieve high thermal stability, great application value, The effect of wide application prospects

Inactive Publication Date: 2005-03-09
NANKAI UNIV
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Problems solved by technology

Designing and synthesizing such heterometallic polymers is a great challenge, because the competing reactions of transition metals and rare earth metals with the same ligand often lead to products containing only one metal instead of the expected heterometal, and the rare earth ions change. The high coordination number also makes the product difficult to predict and control

Method used

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  • Three dimensional nano-tube shaped dysprosium manganese hetero metal type magnesium ion fluorescent probe and preparation method
  • Three dimensional nano-tube shaped dysprosium manganese hetero metal type magnesium ion fluorescent probe and preparation method
  • Three dimensional nano-tube shaped dysprosium manganese hetero metal type magnesium ion fluorescent probe and preparation method

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Experimental program
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Embodiment 1

[0054] The synthesis of embodiment 1 complex:

[0055] 0.2mmol Dy(OH) 3 (0.109g), 0.3mmol MnCO 3 A mixture of (0.034g), 1.1mmol PDA (0.183g) and 10mL water was stirred at room temperature for half an hour, and then the mixture was transferred to the polytetrafluoroethylene liner of a 20mL hydrothermal reactor, and kept at a constant temperature of 165°C After 72 hours, the temperature was programmed down to room temperature at 0.5°C / hour. The obtained product was washed with 6 mL of water and 6 mL of ether to obtain polyhedral prism crystals. The calculated yield based on metal Dy was 67%.

Embodiment 2

[0056] The characterization of embodiment 2 complexes:

[0057] (1) Structure determination of complexes

[0058] The crystal structure was determined by using BRUKER SMART 1000 X-ray diffractometer, using the Mokα ray (λ=0.71073 ) monochromated by graphite as the incident radiation, collecting diffraction points by ω-2θ scanning, and correcting the unit cell by the least square method Parameters, the crystal structure was obtained from the difference Fourier electron density map using the SHELXL-97 direct method, and was corrected by Lorentz and polarization effects. The positions of hydrogen atoms were obtained from theoretical hydrogenation and added to structure refinement using fixed anisotropy thermal parameters. The detailed crystal determination data are shown in Table 1. structure see figure 1 , figure 2 ; figure 1 : [Dy(PDA) 3 mn 1.5 (H 2 O) 3 ]·3H 2 Crystal structure diagram of the O unit. figure 2 : [Dy(PDA) 3 mn 1.5 (H 2 O) 3 ]·3H 2 The 3D nanot...

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Abstract

A Dy-Mn type fluorescent probe with 3D nano-artery structure for Mg ions has the chemical formula: [Dy(PDA)3Mn1.5(H2O)3].3H2O, where PDA is 2,6-pyridinedioic acid ligand. When MgCl2 is added in N,N'-dimethyl methylamide solution of said ligand and the concentration of Mg ions is creased, the intensity of fluorescent peak is increased.

Description

technical field [0001] The invention relates to the preparation of a rare earth-transition mixed metal complex type metal ion fluorescent probe, in particular to a three-dimensional nanotube dysprosium-manganese (Dy-Mn) heterometallic magnesium ion fluorescent probe and a preparation method. Background technique [0002] The research on rare earth-transition mixed metal coordination polymers has become one of the most active fields in current chemical research, not only because of their fascinating topology, but also because they often exhibit specific optical, electrical, magnetic, catalytic, Adsorption and other properties. Designing and synthesizing such heterometallic polymers is a great challenge, because the competing reactions of transition metals and rare earth metals with the same ligand often lead to products containing only one metal instead of the expected heterometal, and the rare earth ions change. The high coordination number also makes the product difficult ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06G01N33/52
Inventor 程鹏赵斌陈晓燕廖代正
Owner NANKAI UNIV
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