Compound tin boron oxybromide, tin boron oxybromide birefringent crystal, and preparation method and application thereof
A technology of birefringent crystals and compounds, used in chemical instruments and methods, boron halide compounds, crystal growth, etc.
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Embodiment 1
[0057] Preparation compound:
[0058] According to the reaction formula: 2SnBr 2 +3B 2 o 3 →Sn 2 B 5 o 9 Br+BBr 3 , the compound Sn was synthesized by solid phase reaction method 2 B 5 o 9 Br:
[0059] SnBr 2 , B 2 o 3 Mix evenly at a molar ratio of 2:3, put it into a platinum crucible, place it in a muffle furnace, raise the temperature to 450°C under vacuum or an inert atmosphere, and keep the temperature constant for 60 hours to obtain the compound Sn 2 B 5 o 9 Polycrystalline powder of Br.
Embodiment 2
[0061] Preparation compound:
[0062] According to the reaction formula: 2SnBr 2 +5H 3 BO 3 →Sn 2 B 5 o 9 Br+6H 2 O+3HBr, compound Sn was synthesized by solid state reaction 2 B 5 o 9 Br:
[0063] SnBr 2 , H 3 BO 3 Mix evenly at a molar ratio of 2:5, put it into a platinum crucible, place it in a muffle furnace, raise the temperature to 400°C under vacuum or an inert atmosphere, and keep the temperature constant for 100 hours to obtain the compound Sn 2 B 5 o 9 Polycrystalline powder of Br.
Embodiment 3
[0065] Preparation compound:
[0066] According to the reaction formula: SnO+SnBr 2 +2B 2 o 3 +H 3 BO 3 →Sn 2 B 5 o 9 Br+HBr+H 2 O, the compound Sn was synthesized by solid phase reaction 2 B 5 o 9 Br:
[0067] SnO, SnBr 2 , B 2 o 3 , H 3 BO 3 Mix evenly according to the ratio of the reaction formula in Example 3, put it into a platinum crucible, place it in a muffle furnace, raise the temperature to 500°C under vacuum or an inert atmosphere, and keep the temperature constant for 120 hours to obtain the compound Sn 2 B 5 o 9 Polycrystalline powder of Br.
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