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Preparation method of three-dimensional manganese coordination polymer

A coordination polymer, three-dimensional technology, applied in the field of coordination polymers and their preparation, can solve the problems of unsatisfactory stability, high cost, complicated preparation process, etc.

Inactive Publication Date: 2020-10-27
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the stability of the molecular structure of the coordination polymers reported is not ideal, the preparation process is relatively complicated, and the cost is high, which limits the wide application of coordination polymers.

Method used

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  • Preparation method of three-dimensional manganese coordination polymer
  • Preparation method of three-dimensional manganese coordination polymer
  • Preparation method of three-dimensional manganese coordination polymer

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0032] In this embodiment, a preparation method of a three-dimensional manganese coordination polymer, the steps are as follows:

[0033] a. Weigh 0.05 mmol of 5,5'-(1,2-phenylene bis(methoxy))diisophthalic acid ligand material and dissolve it in 1.5 ml of N,N-dimethylformamide , then add 0.05 mmol bpmp nitrogen-containing ligand to obtain a ligand solution;

[0034] b. Weigh 0.20 mmol of manganese nitrate and dissolve it in 7.5 milliliters of deionized water to obtain a manganese salt solution;

[0035] c. the ligand solution prepared in the step a and the manganese salt solution prepared in the step b are mixed in a reaction kettle with a Teflon liner with a volume of 15 milliliters to obtain a mixture of reactants solution; at 85°C, keep the mixed solution of reactants at a constant temperature for 72h for hydrothermal synthesis reaction, then cool down to room temperature with a rate gradient of 10°C / h, and then filter the product solution to obtain light yellow rod-shape...

Embodiment 2

[0037] This embodiment is basically the same as Embodiment 1, especially in that:

[0038] In this embodiment, a preparation method of a three-dimensional manganese coordination polymer, the steps are as follows:

[0039] a. Weigh 0.05 mmol of 5,5'-(1,2-phenylene bis(methoxy))diisophthalic acid ligand material and dissolve it in 1.5 ml of N,N-dimethylformamide , then add 0.05 mmol bpmp nitrogen-containing ligand to obtain a ligand solution;

[0040] b. Weigh 0.20 mmol of manganese nitrate and dissolve it in 7.5 milliliters of deionized water to obtain a manganese salt solution;

[0041] c. the ligand solution prepared in the step a and the manganese salt solution prepared in the step b are mixed in a reaction kettle with a Teflon liner with a volume of 15 milliliters to obtain a mixture of reactants solution; at 85°C, keep the mixed solution of reactants at a constant temperature for 48 hours for hydrothermal synthesis reaction, then cool down to room temperature at a rate o...

Embodiment 3

[0054] This embodiment is basically the same as the previous embodiment, and the special features are:

[0055] In this example, see figure 1 ,

[0056] In this embodiment, a preparation method of a three-dimensional manganese coordination polymer, the steps are as follows:

[0057] a. Weigh 0.05 mmol of 5,5'-(1,2-phenylene bis(methoxy))diisophthalic acid ligand material and dissolve it in 1.5 ml of N,N-dimethylformamide , then add 0.05 mmol bpmp nitrogen-containing ligand to obtain a ligand solution;

[0058] b. weigh 0.25 millimoles of manganese nitrate and dissolve it in 7.5 milliliters of deionized water to obtain a manganese salt solution;

[0059] c. the ligand solution prepared in the step a and the manganese salt solution prepared in the step b are mixed in a reaction kettle with a Teflon liner with a volume of 15 milliliters to obtain a mixture of reactants solution; at 100°C, keep the mixed solution of reactants at a constant temperature for 48 hours for hydrothe...

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Abstract

The invention discloses a three-dimensional manganese coordination polymer and a preparation method thereof. The complex belongs to a monoclinic system and a C2 / c space group, has a three-dimensionalporous structure, and comprises 1.5 crystallographically independent Mn (II) ions, 1.5 H2L2-ligands, a half bpmb ligand, a coordination water molecule, a half crystal water molecule and a half crystalDMF molecule in a structural unit. According to the preparation method, 5, 5'-(1, 2-phenylene bis(methoxy))diisophthalic acid is used as a main ligand, manganous nitrate is used as a metal source, the target polymer is synthesized through a solvothermal method, the preparation process is simple, the repeatability is good, and a certain basis is provided for synthesis and research of transition metal complexes. According to the present invention, the thermal stability of the coordination polymer in the nitrogen atmosphere in a temperature range from room temperature to -800DEG C is researched,and the coordination polymer has good thermal stability and can be adopted as s potential heat-resistant material.

Description

technical field [0001] The invention relates to a coordination polymer and a preparation method thereof, which are applied in the technical field of inorganic and organic composite materials. Background technique [0002] Since the 1990s, coordination polymers have been a research hotspot in inorganic chemistry and coordination chemistry because of their fascinating structures and diverse properties. To date, most coordination polymers are composed of metals and organic carboxylic acids. Carboxylate anions have rich coordination modes, high structural stability, and can transmit magnetic coupling. They are preferred multi-dentate bridging ligands for building coordination polymers with transition metal ions. Studies have shown that multidentate carboxylic acids and nitrogen heterocyclic ligands are more likely to interact with transition metal ions through coordination bonds, hydrogen bonds, and π-π stacking to construct a coordination polymer porous MOF material with a nov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00
CPCC08G83/008
Inventor 田涵冰李明星
Owner SHANGHAI UNIV
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