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Method for preparing manganese complex blue fluorescent material in dimer form

A technology of blue fluorescence and manganese in the form of manganese, which is applied in the field of fluorescence emission, can solve the problems that the dimer form has not been reported, and achieve good fluorescence emission performance, good thermal stability, and cheap raw materials

Inactive Publication Date: 2017-05-10
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The focus of current research is only on the luminescent properties of a single complex, and the dimer form has not been reported.

Method used

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  • Method for preparing manganese complex blue fluorescent material in dimer form
  • Method for preparing manganese complex blue fluorescent material in dimer form
  • Method for preparing manganese complex blue fluorescent material in dimer form

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Embodiment 1

[0019] 1 mmol of 1,6 sodium naphthalene disulfonate, 1 mmol of MnCl 2 4H 2 O and 1 mmol of 1,10-phenanthroline were dissolved in 25 mL of aqueous methanol with a volume ratio of methanol to water of 1:1; the solution obtained in the previous step was transferred to a 30 mL stainless steel reaction vessel lined with polytetrafluoroethylene In 120 ℃ constant temperature condition, reacted for 72 h, slowly cooled to room temperature, filtered to obtain yellow blocky crystals, the product was washed with deionized water, and dried naturally in air, the yield was 65%.

[0020] After elemental analysis, the molecular formula C 142 h 128 mn 4 N 16 o 38 S 8 , measured value % (theoretical value %): C54.43 (54.22), H4.38 (4.07), N7.35 (7.13). Infrared spectrum (cm -1 ): 3458, 1610, 1518, 1205, 1107, 1043, 878, 729, 678.

[0021] It can be known from the accompanying drawings that the fluorescence emission peak of the complex is at 439 nm, and the absorption peak of the ultravi...

Embodiment 2

[0023] 0.85 mmol of 1,6 sodium naphthalene disulfonate, 0.85 mmol of MnCl 2 4H 2 O and 1 mmol of 1,10-phenanthroline were dissolved in 25 mL of aqueous methanol with a volume ratio of methanol to water of 1:1; the solution obtained in the previous step was transferred to a 30 mL Teflon-lined stainless steel reaction After reacting at a constant temperature of 120 °C for 75 h in the kettle, it was slowly cooled to room temperature, filtered to obtain yellow blocky crystals, and the product was washed with deionized water and dried naturally in air.

Embodiment 3

[0025] 0.85 mmol of 1,6 sodium naphthalene disulfonate, 0.85 mmol of MnCl 2 4H 2 O and 1.15 mmol of 1,10-phenanthroline were dissolved in 25 mL of aqueous methanol with a volume ratio of methanol to water of 1:1; the solution obtained in the previous step was transferred to a 30 mL Teflon-lined stainless steel reaction After reacting for 80 h at a constant temperature of 120 °C in the kettle, it was slowly cooled to room temperature, filtered to obtain yellow blocky crystals, and the product was washed with deionized water and dried naturally in air.

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Abstract

The invention relates to the field of fluorescence emission, and particularly discloses a method for preparing a manganese complex blue fluorescent material in a dimer form. The method comprises the following preparation steps: dissolving 1,6-naphthalenedisulfonic acid, MnCl2.4H2O and 1,10-phenanthroline into 25 milliliters of an aqueous solution of methanol; transferring a solution obtained in the previous step into a 30-milliliter stainless steel reaction kettle lined with polytetrafluoroethylene, reacting for 70 to 80h under the constant temperature condition of 120 DEG C, slowly cooling the solution to room temperature, filtering to obtain yellow bulk crystals, washing the product with de-ionized water, and naturally drying the product in air. The obtained product has high thermal stability; no rare earth elements but transition metal manganese is adopted for synthesis of the complex; the synthesis method is simple, and comprises fewer synthesis steps, the synthesis cost is low, and the adopted raw materials are low-cost; the complex has high fluorescence emission performance.

Description

technical field [0001] The invention relates to the field of fluorescence emission, in particular to a method for preparing a blue fluorescent material of manganese complex in dimer form. Background technique [0002] There are many kinds of existing fluorescent materials, and the synthesis steps of conjugated organic compounds such as nitrogen-containing heterocycles and aromatic rings are many, and the synthesis costs are high. Most of the existing complex fluorescent materials use rare earth elements as central ions, but rare earth elements The price is higher. Existing studies on the luminescent properties of complexes mainly focus on rare earth compounds, because rare earth elements have good luminescent properties. The conjugated system of the complex and the empty orbital of rare earth elements are used to change the charge transfer of the complex, thereby changing the luminescent properties. The focus of current research is only on the luminescent properties of sin...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07F13/00
CPCC07F13/005C09K11/06C09K2211/188
Inventor 关磊
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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