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An octanuclear silver alkyne cluster material with thermochromic and luminescent properties, its preparation method and application

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: 2021-10-26
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • An octanuclear silver alkyne cluster material with thermochromic and luminescent properties, its preparation method and application
  • An octanuclear silver alkyne cluster material with thermochromic and luminescent properties, its preparation method and application
  • An octanuclear silver alkyne cluster material with thermochromic and luminescent properties, its preparation method and application

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 whose pH value 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 octanuclear silver alkyne cluster material with thermochromic and luminescent properties. The chemical formula of the octanuclear silver alkyne cluster material is: C 38 h 48 Ag 8 f 9 NO 6 , its structural chemical formula is: Ag 8 (Bu t C≡C) 5 (CF 3 COO) 3 (CH 3 CN), the eight-nuclear silver alkyne cluster material is a new type of silver cluster material, the silver cluster material is made of tert-butyl alkyne silver ligand and CH 3 CN ligand synthesis, with excellent thermochromic luminescent properties, 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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Patent Type & Authority Patents(China)
IPC IPC(8): C07F1/10C09K9/02G01K11/16
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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