Dark blue light-emitting organic micro-nano crystal material and preparation method thereof
A crystalline material, dark blue technology, applied in luminescent materials, organic chemistry methods, organic chemistry and other directions, can solve the problems of few micro-nano crystals, red shift, lack of electricity, etc., to achieve strong adaptability, regular shape, easy to operate Effect
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[0060] The present invention also provides a method for preparing the above-mentioned dark blue light-emitting organic micro-nano crystal material, which uses 2,2'-bis(2-pyridyl)biphenyl and protonic acid as raw materials to prepare the organic micro-nano crystal material. Steps include:
[0061] Step 1. Using 2,2'-bis(2-pyridyl)biphenyl as the proton acceptor, and the proton acid as the proton donor;
[0062] Step 2. Accurately weigh 2,2'-bis(2-pyridyl)biphenyl, add an organic solvent and ultrasonically dissolve to obtain a stock solution of proton acceptor molecules;
[0063] Step 3. Add the protonic acid to the stock solution of proton acceptor molecules under gentle ultrasound, and let stand at room temperature;
[0064] Step 4. The liquid left standing at room temperature is dropped on the substrate, and the organic solvent is evaporated to dryness to obtain a deep blue light-emitting organic micro-nano crystal material based on the molecule shown in formula I.
[0065]...
Embodiment 1
[0075] This embodiment provides a blue organic micro-nano crystal material, which is composed of chloride ion and protonated 2,2'-bis(2-pyridyl)biphenyl cation (2,2'-([1,1'-biphenyl) Benzene]-2,2'-diyl)bis(pyridin-1-ium)) consists of (2,2'-([1,1'-biphenyl]-2,2'-diyl)bis(pyridine- 1-onium) hydrochloride), the chemical formula is C 22 h 26 Cl 2 N 2 o 4 , the molecular weight is 453.35, the crystal space group of the crystal material is C 1 2 / c 1, and the unit cell parameter is α=90°, β=125.443(4)°, γ=90°, V=1615.80(5), a single crystal structure includes a protonated 2,2'-bis(2-pyridyl)biphenyl cation, Two chloride ions and four water molecules, the chloride ion and the hydrogen on the protonated pyridinic nitrogen are connected by a hydrogen bond N-H...Cl, and the length of the hydrogen bond is N-H bond length is
[0076] The present invention provides a preparation method of 2,2'-([1,1'-biphenyl]-2,2'-diyl)bis(pyridin-1-ium) hydrochloride:
[0077] Accurately wei...
Embodiment 2
[0088] This embodiment provides another kind of blue organic micro-nano crystal material, which consists of perchlorate ion and protonated 2,2'-bis(2-pyridyl)biphenyl cation (2,2'-([1,1 '-biphenyl]-2,2'-diyl)bis(pyridin-1-ium)) from (2,2'-([1,1'-biphenyl]-2,2'-diyl)bis (pyridin-1-ium) perchlorate), the chemical formula is C 22 h 18 Cl 2 N 2 o 8 , the molecular weight is 509.28, the crystal space group of the crystal material is P-1, and the unit cell parameter is α=67.08(3)°, β=67.81(3)°, γ=76.78(3)°, V=1434.2(7), a single crystal structure including a protonated 2,2'-bis(2-pyridine base) biphenyl cation, two perchlorate ions, the hydrogen on the perchlorate ion and the protonated pyridinium nitrogen is connected by a strong hydrogen bond N-H...O, and the length of the hydrogen bond is N-H bond length is
[0089] The invention provides a preparation method of 2,2'-([1,1'-biphenyl]-2,2'-diyl)bis(pyridin-1-ium)perchlorate:
[0090] Accurately weigh 3.0mg of 2,2'-bi...
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