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Three-dimensional porous coordination polymer, preparation method for same and application thereof

A coordination polymer, three-dimensional porous technology, applied in cobalt organic compounds, chemical instruments and methods, other chemical processes, etc.

Inactive Publication Date: 2014-11-05
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, many difficulties have been encountered in the design and synthesis of such coordination polymers, and the resulting products usually contain only a single ligand rather than the expected mixed ligands.

Method used

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  • Three-dimensional porous coordination polymer, preparation method for same and application thereof
  • Three-dimensional porous coordination polymer, preparation method for same and application thereof
  • Three-dimensional porous coordination polymer, preparation method for same and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] At room temperature in Example 1, the CoCl 2 ·6H 2 O (0.0238g, 0.1mmol), H 2 ndc (0.0216g, 0.1mmol) and azpy (0.0184g, 0.1mmol) were dissolved in DMF (10mL), stirred for 20 minutes, the above solution was poured into a 30mL stainless steel reaction kettle, heated at 140°C for two days, and heated at 3 °C / hour down to room temperature, a purple bulk single crystal was obtained.

[0024] Characterization of Example 1

[0025] (1) Determination of the crystal structure of Example 1

[0026] Select a single crystal of appropriate size under a microscope, and use graphite monochromatized Mo Kα rays at room temperature The X-ray diffraction structure of the single crystal was determined on a Bruker Apex II CCD diffractometer, and the results are shown in Table 1: Crystallographic data of coordination polymer 1. The SADABS method was used for semi-empirical absorption correction, the unit cell parameters were determined by the least squares method, data reduction and str...

Embodiment 2

[0036] At room temperature in Example 2, the CoCl 2 ·6H 2 O (0.2mmol), H 2 ndc (0.2mmol) and azpy (0.2mmol) were dissolved in DMF (20mL), stirred for 20 minutes, the above solution was poured into a stainless steel reaction kettle, heated at 150°C for three days, and cooled to room temperature at 4°C / hour, A purple bulk single crystal was obtained.

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Abstract

The invention relates to a three-dimensional porous coordination polymer, a preparation method for the same and application thereof. A molecular formula of the coordination polymer is: [Co (ndc) (azpy)]2 2H2O DMF, a secondary structural unit of the coordination polymer is a crystal monoclinic system, a space group is C2 / c, a Co1 atom in the structure is positioned in a penta-coordinate pyramid coordination environment but a Co2 atom is represented as a hexa-coordinate octahedral configuration, and a Co1 center and a Co center form a three-dimensional porous structure by ndc2- and azpy ligand by means of bridging. Taking a transition metal ion Co2+, organic ligand H2ndc and azpy as precursors, the three-dimensional porous coordination polymer [Co (ndc) (azpy)]2 2H2O DMF is prepared by self-assembly by means of a solvothermal method. The coordination polymer is high in heat stability, and 2.8mmol / g oxygen can be absorbed under the constant pressure.

Description

technical field [0001] The invention belongs to the field of synthesis and application of coordination polymers, in particular to the synthesis of a three-dimensional porous coordination polymer and its application as a hydrogen storage material. Background technique [0002] The energy crisis and environmental pollution are attracting great attention worldwide. Hydrogen, as a renewable green energy, has attracted much attention. The development of hydrogen storage materials is the key to solving the technical problems of hydrogen storage in hydrogen energy applications. Coordination polymers have become one of the hotspots in current hydrogen storage research due to their structural diversity, high specific surface area, controllable pore size and shape, and high hydrogen storage capacity. Many research groups at home and abroad have made important contributions to the design and synthesis of porous coordination polymers, such as Long, J.R., Yaghi, O.M.Chem.Soc.Rev., 2009, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/06B01J20/22
Inventor 袁爱华张颖周虎王珏刘晓庆
Owner JIANGSU UNIV OF SCI & TECH