A kind of preparation method of ternary nickel complex luminescent material

Abstract

The invention discloses a preparation method of a novel ternary nickel complex luminescent material. The method comprises the steps as follows: nickel chloride, 2-carbonylpropanoic acid-4-nitrobenzoylhydrazone and 2,2-bipyridyl are weighed in the ratio of mass of substances being 1:(1-1.5):(1-5), after 2-carbonylpropanoic acid-4-nitrobenzoyl hydrazone and 2,2-bipyridyl are mixed, the mixture is dissolved with 40-60 mL of an ethanol solution, a mixed ligand solution is obtained after uniform mixing, nickel chloride is dissolved with 10-20 mL of an ethanol solution, and a nickel chloride solution is obtained; the stirred nickel chloride solution is slowly dropwise added to the mixed ligand solution, a jade green solution is obtained after a reaction at the room temperature, filtration is performed, and green complex powder is obtained after water-bath concentration; a little complex powder is recrystallized in methanol, filtrate is left to stand for 1 month, and complex monocrystals areobtained. The luminescent material has a strong fluorescence emission peak in the 490 nm position and a weak fluorescence emission peak near the 570 nm position.

Description

technical field [0001] The invention relates to the field of structural chemistry, in particular to a preparation method of a ternary nickel complex luminescent material. Background technique [0002] Carboxylic acid aroylhydrazone compounds have a large conjugated rigid plane and a good rigid structure due to their aromatic rings. When they contain N, O and other atoms, they can form complexes with stable chelate structures with almost all metal ions , especially easy to form metal complex luminescent materials with good stability through the coordination of carboxyl, oxygen atoms in acyl groups, and nitrogen atoms of imino groups with metal ions. When the second ligand is introduced, a metal ternary organic complex can be formed. The second ligand can replace the coordination of solvent molecules to reduce non-radiative inactivation and improve its luminescent performance to a large extent. It has become a widely used Luminous material in the foreground. The polypyridine...

AI Technical Summary

Problems solved by technology

However, the simultaneous reaction of acylhydrazone, polypyridine and nickel ions to form a ternary nickel complex with luminescent properties, and the study of its luminescent properties have not been reported in the prior art.

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