An electron transport material and an organic electroluminescent device using the material
A technology of electron transport materials and structural formulas, applied in the fields of electric solid devices, organic chemistry, luminescent materials, etc., to achieve the effect of improving the carrier migration rate, enriching the electron cloud density, and reducing the energy level
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Embodiment 1
[0054] figure 1 It is the relationship diagram of the application example 1 of the present invention, the comparison example 1, and the comparison example 2 brightness with the voltage change;
[0055] figure 2 It is the luminescence lifetime diagram of Application Example 1 of the present invention.
[0056] Those who do not indicate the specific conditions in the examples are carried out according to the conventional conditions or the conditions suggested by the manufacturer. The reagents or instruments used were not indicated by the manufacturer, and they were all conventional products that could be purchased from the market.
[0057] Example 1:
[0058]
[0059] The specific synthesis method of the electron transport material (1) is as follows:
[0061]
Embodiment 2
(2)
[0064]
[0065] Under the protection of nitrogen, magnesium (3.0eq, 3.98g, 24.3g / mol, 164mmol) and iodine (catalytic amount) were added to anhydrous tetrahydrofuran (199g, 50 times the mass of magnesium), stirred at room temperature for 20min, and heated to 55 Stir at ℃ for 10 minutes to obtain solution A, add compound 5 (2.1eq, 205.97g / mol, 23.65g, 114.8mmol) into anhydrous tetrahydrofuran (236.5g, 10 times the mass of compound 5), stir and dissolve, then drop into solution A In, stir for 1h after dropping, heat to reflux and stir for 2h, cool to room temperature and ice bath to obtain solution B, compound 4 (10g, 182.92g / mol, 54.67mmol) was added to anhydrous tetrahydrofuran (100g, compound 4 10 times the mass), stirred and dissolved, then dropped into solution B, stirred at room temperature for 5 hours after dropping, added dropwise hydrochloric acid with a concentration of 10%, stirred for 30 minutes, then added toluene, continued to stir for 10 minutes, separated ...
Embodiment 3
[0071] The specific synthesis method of the electron transport material (2) is as follows:
[0072] Step (1) is basically the same as embodiment 1, and all the other steps are as follows:
[0074]
[0075] Under the protection of nitrogen, magnesium (3.0eq, 3.98g, 24.3g / mol, 164mmol) and iodine (catalytic amount) were added to anhydrous tetrahydrofuran (199g, 50 times the mass of magnesium), stirred at room temperature for 20min, and heated to 55 Stir at ℃ for 10 minutes to obtain solution A, add compound 5 (2.1eq, 205.97g / mol, 23.65g, 114.8mmol) into anhydrous tetrahydrofuran (236.5g, 10 times the mass of compound 5), stir and dissolve, then drop into solution A In, stir 1h after dropping, heat to reflux reaction and stir for 2h, cool to room temperature and ice bath to obtain solution B, compound 7 (10g, 181.92g / mol, 57.97mmol) was added to anhydrous tetrahydrofuran (100g, compound 7 10 times the mass), stirred and dissolved, then dropped into solution B, stirred at room...
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