884336-44-1

Basic information

• Product Name: 9,9-Spirodifluorene-2-Boronic acid pinacol ester
• Synonyms: 9,9-Spirodifluorene-2-Boronic acid pinacol ester;2-(9,9'-Spirobi[fluoren]-7-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;9,9'-Spirobi[9H-fluoren]-2-ylboronic acid pinacol ester;9,9-Spirodifluorene-2-Boronic acid picol ester;2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[fluorene];2-(9,9'-spirobi[fluorene]-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• CAS NO: 884336-44-1
• Molecular Formula: C47H54O4
• Molecular Weight: 682.92926
• Mol File: 884336-44-1.mol
• Article Data: 14

Chemical Properties

• Melting Point: 248.0 to 252.0 °C
• Boiling Point: 585.6±29.0 °C(Predicted)
• Appearance: /
• Density: 1.23±0.1 g/cm3(Predicted)
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• CAS DataBase Reference: 9,9-Spirodifluorene-2-Boronic acid pinacol ester(CAS DataBase Reference)
• NIST Chemistry Reference: 9,9-Spirodifluorene-2-Boronic acid pinacol ester(884336-44-1)
• EPA Substance Registry System: 9,9-Spirodifluorene-2-Boronic acid pinacol ester(884336-44-1)

Safety Data

• Hazardous Substances Data: 884336-44-1(Hazardous Substances Data)

Usage

General Description

9,9-Spirodifluorene-2-Boronic acid pinacol ester is a chemical compound with the molecular formula C28H26BFO4. It is a boronic acid pinacol ester derivative that contains a spirocyclic structure. 9,9-Spirodifluorene-2-Boronic acid pinacol ester is commonly used in organic synthesis as a building block for the construction of various functional materials and organic molecules. It has been reported to exhibit interesting fluorescent properties and has potential applications in the development of optoelectronic devices and materials. Additionally, the unique spirocyclic structure of 9,9-Spirodifluorene-2-Boronic acid pinacol ester makes it a valuable precursor for the synthesis of novel organic compounds with diverse properties and potential applications in various scientific and industrial fields.

Upstream product

• 61676-62-8 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 
• 3096-56-8 2-bromofluoren-9-one 
• 1186096-14-9 (9,9'-spirobifluorene-2-yl)trifluoromethanesulfonate 
• 73183-34-3 bis(pinacol)diborane 
• 236389-20-1 9-(biphenyl-2-yl)-2-bromo-9-fluorenol 
• 171408-76-7 2-bromo-9,9'-spirobifluorene 
• 2052-07-5 2-Bromobiphenyl 

Downstream Products

• 1613668-56-6 4-(9,9'-spirobifluorene-2-yl)phenyltriphenylsilane 
• 1613668-58-8 C₄₉H₃₃BrSi 
• 1613668-55-5 C₆₁H₄₁NSi 
• 1613668-59-9 C₆₁H₄₀BrNSi 

Relevant articles and documents

C2-, C3- spirobifluorene fused carbazole modified triazine as an electron transport type host of exciplex

In this work, we report a novel spirobifluorene carbazole (SBFCbz) donor developed by fusion of carbazole with 9,9′-spirobi[fluorene] (SBF) unit. The newly synthesized SBFCbz donor combined with a diphenyl triazine acceptor to offer an 5'-(4,6-diphenyl-1,3,5-triazin-2-yl)-5′H-spiro[fluorene-9,11′-indeno[1,2-b]carbazole] (SBFTrz) host which played a role of an n-type host. An exciplex host of SBFTrz: 9-([1,1′-biphenyl]-4-yl)-9′-phenyl-9H,9′H-3,3′-bicarbazole (BPBPCz) was developed by combining it with a p-type BPBPCz host. The developed exciplex host showed triplet energy of 2.59 eV, making it a suitable host for the green and red phosphorescent organic light-emitting diodes (PhOLEDs). The PhOLEDs fabricated using the exciplex host system offered excellent charge balance in the emitting layer, which resulted in above 20% external quantum efficiency (EQE) and resistance to the efficiency roll-off at high luminance. The green and red PhOLEDs developed showed the maximum EQE/EQE at 1000 cd/m2 of 22.0/21.7% and 26.2/23.2%, respectively. Besides, the SBFTrz: BPBPCz exciplex host-based green and red devices showed three- and five-fold enhancement, respectively, in the operational lifetime compared to their corresponding SBFTrz single host devices. Thus, the above results confirmed the suitability of the SBFTrz: BPBPCz exciplex as a host to develop PhOLEDs with high efficiency, improved stability at high luminance, and a long operational lifetime.

Frequency-Upconverted Stimulated Emission by Up to Six-Photon Excitation from Highly Extended Spiro-Fused Ladder-Type Oligo(p-phenylene)s

Frequency-upconverted fluorescence and stimulated emission induced by multiphoton absorption (MPA) have attracted much interest. As compared with low-order MPA processes, the construction of high-order MPA processes is highly desirable and rather attracti

Compound, organic light emitting diode, and display device

The invention provides a compound for fabricating an electron transport layer. The compound has a molecular formula as described in the specification. The invention also provides an organic light emitting diode and an organic light emitting diode display