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Eight-core alkyne silver cluster material with thermochromic luminescent property, and preparation method and application thereof

A thermal discoloration and silver cluster technology, applied in the direction of color-changing fluorescent materials, chemical instruments and methods, thermometers with physical/chemical changes, etc., can solve the problem of uncontrollable synthesis reaction of high-nuclear silver clusters, and achieve excellent thermal discoloration The effect of glowing properties

Active Publication Date: 2019-08-16
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is extremely challenging to construct metallic silver clusters in an ordered manner, that is, the synthetic reaction of high-nuclear silver clusters is uncontrollable.

Method used

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  • Eight-core alkyne silver cluster material with thermochromic luminescent property, and preparation method and application thereof
  • Eight-core alkyne silver cluster material with thermochromic luminescent property, and preparation method and application thereof
  • Eight-core alkyne silver cluster material with thermochromic luminescent property, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Synthesis of thermochromic luminescent octanuclear silver alkyne cluster materials

[0036] [AgC≡C t Bu] n (0.0566g, 0.2994mmol) and CF 3 COOAg (0.0660g, 0.2987mmol) was added to the reactor, and CH 3 CN was used as a solvent, and then put into an oven at 70°C to react for 24 hours, and left at room temperature to obtain a yellow suspension, the pH of which was 5.9;

[0037]Filter the yellow suspension through filter paper to obtain a colorless and transparent liquid, and store the colorless and transparent liquid in a beaker, slowly volatilize at room temperature, and obtain a colorless block crystal after about two days of volatilization , which is a thermochromic luminescent octanuclear silver alkyne cluster material.

Embodiment 2

[0038] Example 2: Thermal discoloration of thermochromic luminescent octanuclear silver alkyne cluster materials

[0039] The thermochromic luminescent octanuclear silver alkyne cluster material sample prepared in Example 1 emits faint purple light at room temperature under the irradiation of an ultraviolet lamp. When the sample was soaked in liquid nitrogen, it emitted an intense green light under the same UV light. When the sample temperature gradually increased to room temperature, its purple color returned. The above-mentioned thermochromic luminescent behavior visible to the naked eye is reversible and can be applied to temperature sensing. The linear graph between the emission intensity and temperature corresponding to the thermochromic luminescent octanuclear silver alkyne cluster material image 3 .

Embodiment 3

[0040] Example 3: Physical performance detection of synthetic thermochromic luminescent octanuclear silver alkyne cluster material

[0041] The thermochromic luminescent eight-nuclear silver alkyne cluster material obtained in Example 1 was further characterized, and the process was as follows:

[0042] (1) Determination of crystal structure

[0043] The X-ray single crystal diffraction data of the complexes were collected and measured on a Bruker D8QUEST diffractometer with a single crystal sample of appropriate size. Graphite monochromator was used, Mo-Kα (λ=0.071073nm) was used as light source, and Saint software package was used for data reduction. The structure was analyzed with the SHELXL-2014 program, and the fill-matrix least-squares refinement based on F 2 ) for structural refinement.

[0044] Detailed crystal determination data are shown in Table 1, important bond length and bond angle data are shown in Table 2, and crystal structure diagrams are shown in figure ...

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Abstract

The invention discloses an eight-core alkyne silver cluster material with thermochromic luminescent properties. The chemical formula of the eight-core alkyne silver cluster material is C38H48Ag8F9NO6.The structural chemical formula is Ag8(ButC-[triple bond]-C)5(CF3COO)3(CH3CN). The material is a silver cluster material with a novel structure. The silver cluster material is synthesized from a tertiary butyl alkyne silver ligand and a CH3CN ligand. The material has excellent thermochromic luminescent properties and can be applied to the technical field of temperature sensing and detection.

Description

technical field [0001] The invention discloses the technical field of synthesis of inorganic nanomaterials, in particular to an octanuclear silver alkyne cluster material with thermochromic and luminous properties, a preparation method and application thereof. Background technique [0002] The formation of high-nuclear silver clusters is a complex process involving multiple component parts. Therefore, it is extremely challenging to construct metallic silver clusters in an ordered manner, that is, the synthetic reaction of high-nuclear silver clusters is uncontrollable. However, many researchers still hope to construct high-nuclear silver clusters by introducing the outstanding coordination characteristics of silver ions combined with the unique properties of organic / inorganic ligands. Currently, with C≡CR and SR (R= t Bu, t The high-nuclear silver clusters constructed by metal silver salt ligands of BuPh, etc.) functional groups are not uncommon. [0003] However, people...

Claims

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Application Information

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IPC IPC(8): C09K9/02G01K11/16
CPCC09K9/02G01K11/20G01K11/16
Inventor 周坤史飓峰季久玉陈志进
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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