A kind of asymmetric squaraine material and its preparation method and application
A squaraine, asymmetric technology, applied in the field of asymmetric squaraine materials and their preparation, can solve problems such as not being able to meet the application requirements of blue-green light sensing, achieve good hole and electron transport characteristics, and simple preparation method , the effect of controlling the reaction process
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Embodiment 1
[0039] This embodiment provides the preparation of an asymmetric squaraine material, which has the following structure:
[0040]
[0041] The specific preparation method of the asymmetric squaraine material with the above structure is:
[0042] The first step, the synthesis of intermediates:
[0043] 1. Dissolve 4g of diphenylamine and 3.8g of 3,4-diisopropoxy-3-cyclobutene-1,2,-dione in 160mL of isopropanol, stir and dissolve for 5min, then add 0.8mL of concentrated hydrochloric acid , Refluxed at 90°C for 3h, the solution was bright yellow.
[0044] 2. Filter the reaction solution, remove excess reaction substrate, remove the filtrate by rotary evaporation, and use 200mL of CHCl 3 Dissolved and evaporated to obtain a dried solid.
[0045] 3. Dissolve the above dried solid with 120mL of acetone and 120mL of 6M hydrochloric acid, and reflux at 70°C for 4h, the solution turns dark red.
[0046] 4. Concentrate the reaction solution by rotary evaporation until 50mL, and di...
Embodiment 2
[0060] This embodiment provides an asymmetric squaraine material, which has the following structure:
[0061]
[0062] The specific preparation method of the asymmetric squaraine material with the above structure is:
[0063] The first step, the synthesis of intermediates:
[0064] 1. Dissolve 4g of diphenylamine and 3.8g of 3,4-diisopropoxy-3-cyclobutene-1,2,-dione in 160mL of isopropanol, stir and dissolve for 5min, then add 0.8mL of concentrated hydrochloric acid , Refluxed at 85°C for 3h, the solution was bright yellow.
[0065] 2. Filter the reaction solution, remove excess reaction substrate, remove the filtrate by rotary evaporation, and use 200mL of CHCl 3 Dissolved and evaporated to obtain a dried solid.
[0066] 3. Dissolve the above dried solid with 120mL of acetone and 120mL of 6M hydrochloric acid, and reflux at 70°C for 4h, the solution turns dark red.
[0067] 4. Concentrate the reaction solution by rotary evaporation until 50mL, and dilute with CHCl 3 E...
Embodiment 3
[0075] This embodiment provides an asymmetric squaraine material, which has the following structure:
[0076]
[0077] The specific preparation method of the asymmetric squaraine material with the above structure is:
[0078] The first step, the synthesis of intermediates:
[0079] 1. Dissolve 4g of diphenylamine and 3.8g of 3,4-diisopropoxy-3-cyclobutene-1,2,-dione in 160mL of isopropanol, stir and dissolve for 5min, then add 0.8mL of concentrated hydrochloric acid , Refluxed at 95°C for 3h, the solution was bright yellow.
[0080] 2. Filter the reaction solution, remove excess reaction substrate, remove the filtrate by rotary evaporation, and use 200mL of CHCl 3 Dissolved and evaporated to obtain a dried solid.
[0081] 3. Dissolve the above dried solid with 120mL of acetone and 120mL of 6M hydrochloric acid, and reflux at 65°C for 5h, the solution turns dark red.
[0082] 4. Concentrate the reaction solution by rotary evaporation until 50mL, and dilute with CHCl 3 E...
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