Saldmpn type nickel halide (II) complex as well as preparation method and application thereof

A technology of complexes and nickel halides, which is applied in organic chemical methods, iron-organic compounds, chemical instruments and methods, etc., can solve problems such as weak halogen bond interactions, achieve enhanced fluorescence intensity, simple preparation methods, and good stability

Active Publication Date: 2021-10-01
KUNMING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there are many studies on Schiff base complexes, but most of the reported halogenated Schiff base complexes rely on the use of organic functional groups to modify ligands. The effect of halogen bonds is weak, and the impact on structure and properties is relatively small. Small, there are relatively few reports on the structure of supramolecular aggregates induced by halogen bonds, and the research on the influence of halogen atoms on the fluorescence properties of supramolecular complexes is still in the blank stage

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  • Saldmpn type nickel halide (II) complex as well as preparation method and application thereof
  • Saldmpn type nickel halide (II) complex as well as preparation method and application thereof
  • Saldmpn type nickel halide (II) complex as well as preparation method and application thereof

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preparation example Construction

[0038] The preparation method of Saldmpn type nickel halide (II) complex of the present invention comprises the steps:

[0039] 1) Dissolve 3,5-dichlorosalicylaldehyde and N, N'-bis(3-aminopropyl)methylamine in methanol and stir for 1.5-2.5 hours;

[0040] 2) Add nickel (II) nitrate and stir for 1-2 hours, then filter to obtain the filtrate;

[0041] 3) Slowly volatilize the filtrate at room temperature to obtain massive brown crystals, wash the crystals several times with polar solvents and filter, and finally dry to obtain the target complex.

[0042] The molar ratio of 3,5-dichlorosalicylaldehyde, N, N'-bis(3-aminopropyl)methylamine to nickel(II) nitrate is 2:1-1.1:1.4-1.5.

[0043] In the step 1, the volume ratio of N, N'-bis(3-aminopropyl)methylamine to methanol is 1:4000-5000.

[0044] In the step 3, the polar solvent is methanol.

[0045] In said step 3, the volatilization time is 7 days.

[0046] The complex compound of the present invention is used as a logic gate...

Embodiment 1

[0052] Take a mixture of 0.019g (0.1 mmol) 3,5-dichlorosalicylaldehyde and 8.1ul (0.05 mmol) N, N'-bis(3-aminopropyl)methylamine in 20 mL of methanol and stir at room temperature for 2 hours, Then 0.022 g (0.072 mmol) of nickel(II) nitrate were added, the resulting light brown mixture was further stirred for 1.5 hours and filtered to obtain a filtrate. The resulting filtrate was slowly evaporated over 7 days to give blocky brown crystals. Filter the blocky brown crystals, wash with methanol for several times, and then open and dry at room temperature to obtain {[Ni II (3,5-Cl-saldmpn)] 3} (1), the yield is 36.5%.

Embodiment 2

[0054] Take a mixture of 0.010g (0.05 mmol) 3,5-dichlorosalicylaldehyde and 4 ul (0.025 mmol) N, N'-bis(3-aminopropyl)methylamine in 20 mL of methanol and stir at room temperature for 1.5 hours, Then 0.011 g (0.036 mmol) nickel(II) nitrate was added, the resulting light brown mixture was further stirred for 1 hour and filtered to obtain a filtrate. The resulting filtrate was slowly evaporated over 6 days to give blocky brown crystals. Filter the blocky brown crystals, wash with methanol for several times, and then open and dry at room temperature to obtain {[Ni II (3,5-Cl-saldmpn)] 3} (1), the yield is 34%.

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Abstract

The invention discloses a Saldmpn type nickel halide (II) complex and a preparation method and application thereof. The complex belongs to a P21 / n space group of a monoclinic system, an asymmetric unit of the complex is formed by connecting three neutral NiII (3,5-Cl-saldmpn) through multiple weak interaction participated by halogen bonds, and each NiII (3,5-Cl-salmen) unit comprises a Ni (II) center and a 3,5-Cl-salmen Saldmpn type ligand. The preparation method comprises the following steps: dissolving 3,5-dichlorosalicylaldehyde and N,N'-bis(3-aminopropyl)methylamine in methanol, conducting stirring, adding nickel nitrate (II), conducting stirring, conducting filtering, volatilizing the filtrate at room temperature to obtain crystals, and conducting washing, filtering and drying to obtain the complex. The complex is used as a pH sensor based on a smart phone imaging system and used for constructing a molecular logic gate. According to the Saldmpn type nickel halide (II) complex, a research model and data are provided for the electronic structure of a front transition metal Schiff base complex and the regulation and control effect of halogen bonds, and compared with a known logic gate, the constructed inhibition type molecular logic gate has the advantages of being small in pH value regulation range, high in sensitivity, good in signal discrimination degree, easy to operate and the like.

Description

technical field [0001] The invention belongs to the technical field of chemical material synthesis, and in particular relates to a nickel (II) halide complex and its preparation method and application. Background technique [0002] Non-covalent bonds refer to interactions that are weaker than covalent bonds. Although their strength is weak, they have a very wide range of applications in many fields such as molecular recognition, chiral resolution, crystal engineering, magnetic materials, and supramolecular assembly. In recent years, the research on the interaction of non-covalent bonds has gradually become a hot spot in the academic circle. Common non-covalent bonds include hydrogen bonds, ion-dipole and dipole-dipole interactions, hydrophobic interactions, and van der Waals attraction, etc. Among them, hydrogen bond is the most common and strongest intermolecular force in the field of crystallography and materials science, and the hydrogen bond has been widely used and cal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/03C09K11/06G01N21/64G01N21/80H03K19/20A61K49/00
CPCC07F15/03C09K11/06G01N21/6428G01N21/80H03K19/20A61K49/0021C07B2200/13C09K2211/1007C09K2211/187G01N2021/6439
Inventor 李天宇吴琼王宝玲黄梅芬焦亮马寻徐新迪
Owner KUNMING UNIV
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