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| | 2-Bromo-9,9'-spirobi[9H-fluorene] Basic information |
| Product Name: | 2-Bromo-9,9'-spirobi[9H-fluorene] | | Synonyms: | 9,9′-Spirobi[9H-fluorene],2′-bromo;2-BROMO-9,9''-SPIROBIFLUOROENE;2-Bromo-9,9'-spirobi[9H-fluorene];2-Bromo-9,9'-spirobi;2-BroMo-9,9'-spirobiflu;2-BSF;2-BroMo-9,9'-spirobifluoren;2- broMospirofluorene | | CAS: | 171408-76-7 | | MF: | C25H15Br | | MW: | 395.29 | | EINECS: | 605-609-0 | | Product Categories: | Pyridines;OLED materials,pharm chemical,electronic;Fluorene Derivatives;Fluorene Series;171408-76-7 | | Mol File: | 171408-76-7.mol | ![2-Bromo-9,9'-spirobi[9H-fluorene] Structure](CAS/GIF/171408-76-7.gif) |
| | 2-Bromo-9,9'-spirobi[9H-fluorene] Chemical Properties |
| Melting point | 182.0 to 186.0 °C | | Boiling point | 517.2±29.0 °C(Predicted) | | density | 1.52±0.1 g/cm3(Predicted) | | vapor pressure | 0-0.001Pa at 20-50℃ | | storage temp. | Sealed in dry,Room Temperature | | form | Solid | | color | White to Orange to Green | | InChI | InChI=1S/C25H15Br/c26-16-13-14-20-19-9-3-6-12-23(19)25(24(20)15-16)21-10-4-1-7-17(21)18-8-2-5-11-22(18)25/h1-15H | | InChIKey | ONCCVJKFWKAZAE-UHFFFAOYSA-N | | SMILES | C12(C3=C(C=CC=C3)C3=C1C=CC=C3)C1=C(C=CC=C1)C1=C2C=C(Br)C=C1 | | LogP | 6.5 at 25℃ and pH6 |
| Safety Statements | 24/25 | | HS Code | 29039990 |
| | 2-Bromo-9,9'-spirobi[9H-fluorene] Usage And Synthesis |
| Description | 2-Bromo-9, 9’-spirobifluorene is a derivative of 9,9'-spirobifluorene. It is a quite useful blue light emitting material used in the organic light emitting diodes (OLEDs). It possesses high photoluminescence efficiency and good chemical stability. Moreover, It has high glass-transition temperature, excellent thermal stability and easy color tenability through introducing low band gap co-monomers.
| | Chemical Properties | Off-white to light yellow crystal or powder | | Synthesis | Synthesis of 2-bromo-spirofluorene
2-bromo-9-hydroxy-9-(2-biphenyl)fluorene (2g) dissolved in 25 mL acetic acid (15 mol/L) containing hydrochloric acid (12 mol/L) was refluxed for about 2 h to separate out a white solid, which was recrystallized with ethanol to produce white crystals of 2-bromo-spirofluorene (1.2 g, yield 63%).
GC-MS (m/z +): 394. 1HNMR (400 MHz, CDCl3, ppm):δ7.80～7.86 (m, 3H), δ7. 70 (d, 1H),δ7.48 (m, 1H), δ7.36 ～ 7.40 (m, 3H), δ7.13 (m, 3H), δ6.84 (d, 1H), δ6.72 (m, 3H) | | References | http://www.sigmaaldrich.com/catalog/product/aldrich/767735?lang=en®ion=US
Tang, S., et al. "A Molecular Glass for Deep-Blue Organic Light-Emitting Diodes Comprising a 9,9′-Spirobifluorene Core and Peripheral Carbazole Groups." Advanced Functional Materials 17.15(2010):2869-2877.
Nakanotani, H., et al. "Extremely Low-Threshold Amplified Spontaneous Emission of 9,9′-Spirobifluorene Derivatives and Electroluminescence from Field-Effect Transistor Structure." Advanced Functional Materials17.14(2010):2328-2335. |
| | 2-Bromo-9,9'-spirobi[9H-fluorene] Preparation Products And Raw materials |
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