Nickel compound with porous two-dimensional layered structure and preparation method of nickel compound

Abstract

The invention discloses a nickel compound with a porous two-dimensional layered structure and a preparation method of the nickel compound. The nickel compound adopts an accurate space structure; the chemical formula is Ni2C50H38N14O14, the structure unit is [Ni2(C5HN3O6)2(bpy)3(H2O)2].bpy (bpy=4,4'-dimethylbipyridine), the crystal system is a monoclinic system, the space group is P2(1) / c, the lattice parameters are as follows: a=11.134, b=19.108, c=12.865 a and beta=104.546 degrees, and nickel ions are in a hexa-coordinate octahedron geometrical configuration. The preparation method of the nickel compound with the porous two-dimensional layered structure is as follows: 5-nitrouracil-4-carboxylate monohydrate, 4,4'-dimethylbipyridine ligand and nickel ions with electrochemical activity are subjected to a chemical reaction, and a nickel compound is prepared. The preparation method is simple to operate, low in cost and suitable for large-scale production. The obtained nickel compound as a porous material has potential application prospects in gas storage and separation, molecular recognition, micromolecule exchange between hosts and guests and other fields.

Description

technical field [0001] The invention belongs to the field of material chemistry, and in particular relates to a nickel compound with a porous two-dimensional layered structure and a preparation method thereof. Background technique [0002] Transition metal cations such as Fe 2+ 、Co 2+ 、Ni 2+ 、Cu 2+ , Mn 2+ etc. have unfilled d orbitals, and are easy to form coordination compounds with organic ligands in different dimensions such as mononuclear, dinuclear, multinuclear, one-dimensional, two-dimensional and three-dimensional structures. By selecting different metal ions, different organic ligands and synthesis methods, metal-organic coordination compounds or coordination polymers with different structures can be synthesized. [0003] Porous metal-organic coordination polymers are a multifunctional material that has developed rapidly in recent decades. Coordination polymers generally use metal ions as connection points and organic bridging ligands as supports to expand to...

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Problems solved by technology

[0004] The research on porous metal-organic coordination polymers began in the late 1980s. In 1989, Koskins Robson et al. reported that inorganic metal clusters and organic ligands were interconnected by coordination bonds to form new polymer materials. It is considered to be the beginning of the research on coordination polymer materials. At that time, the problem was that the structure of the polymer easily collapsed when the guest molecules or templates were removed.

In addition, the yield of hydrothermal or solvothermal synthesis products is often not high, and contains various impurities or by-products

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