1257321-41-7

Basic information

• Product Name: 4,4’-dibromo-9,9’-spirobifluorene
• Synonyms: 4,4’-dibromo-9,9’-spirobifluorene
• CAS NO: 1257321-41-7
• Molecular Weight: 474.194
• Mol File: 1257321-41-7.mol

Chemical Properties

• CAS DataBase Reference: 4,4’-dibromo-9,9’-spirobifluorene(CAS DataBase Reference)
• NIST Chemistry Reference: 4,4’-dibromo-9,9’-spirobifluorene(1257321-41-7)
• EPA Substance Registry System: 4,4’-dibromo-9,9’-spirobifluorene(1257321-41-7)

Safety Data

• Hazardous Substances Data: 1257321-41-7(Hazardous Substances Data)

Usage

Uses

Used in Organic Electronic Materials:
4,4’-dibromo-9,9’-spirobifluorene is utilized as a key component in the development of organic light emitting diodes (OLEDs) and organic photovoltaic cells due to its electron-accepting properties and stability. The incorporation of bromine atoms into the spirobifluorene backbone contributes to the creation of high-performance organic semiconductors.
Used in Materials Science:
In the field of materials science, 4,4’-dibromo-9,9’-spirobifluorene is employed as a building block for designing and synthesizing novel materials with tailored properties. Its rigid and symmetrical structure allows for the precise control of molecular interactions, which is crucial for the development of advanced materials with specific applications.
Used in Nanotechnology:
4,4’-dibromo-9,9’-spirobifluorene serves as a promising candidate in nanotechnology, where its unique structure and properties can be exploited to create nanoscale devices and systems. Its electron-accepting ability and stability make it suitable for applications in nanoelectronics and the fabrication of nanoscale components with enhanced performance.
Used in Optoelectronics:
In the optoelectronics industry, 4,4’-dibromo-9,9’-spirobifluorene is used as a component in the development of optoelectronic devices, such as photodetectors and optical sensors. Its ability to accept electrons and its stability contribute to the improvement of device performance and the realization of efficient energy conversion processes.

Upstream product

• 69200-16-4 2'-bromo-[1,1'-biphenyl]-2-carboxylic acid 
• 13029-09-9 2,2'-dibromobiphenyl 
• 4269-17-4 4-bromo-9H-fluorene-9-one 

Relevant articles and documents

Tri-, tetra- and pentamers of 9,9'-spirobifluorenes through full ortho -linkage: High triplet-energy pure hydrocarbon host for blue phosphorescent emitter

4,4'-Dibromo-9,9'-spirobifluorene was first synthesized, and from this intermediate, three fully ortho-linked tri-, tetra-, and pentamers of 9,9'-spirobifluorenes were constructed. The full ortho-linkage impedes the π conjugation of fluorene units, and guarantees their high triplet energies (ET = 2.80 eV). A device with the trimer as the first pure hydrocarbon host material for blue phosphor FIrpic shows a maximum current efficiency of 25 cd/A.

Preparation method of 4, 4 '-dibromo-9, 9'-spirobifluorene

The invention discloses a preparation method of 4, 4 '-dibromo-9, 9'-spirobifluorene, which comprises the following steps: preparing an intermediate product bis (2 '-bromo-[1, 1'-biphenyl]-2-yl) ketone by taking 2, 2 '-dibrominated biphenyl, n-butyllithiu

CONDENSED CYCLIC COMPOUND, COMPOSITION INCLUDING THE SAME, AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE CONDENSED CYCLIC COMPOUND

A condensed cyclic compound represented by Formula 1: wherein, in Formula 1, X11, X12, and R11 to R24 are the same as described in the specification.

MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

Spirobifluorene compounds for organic electroluminescent devices

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

SPIROBIFLUORENE COMPOUNDS FOR ORGANIC ELECTROLUMINESCENT DEVICES

The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.

MATERIALS FOR ORGANIC ELECTROLUMINESCENT DEVICES

The present invention relates to compounds which are suitable for use in electronic devices, and to electronic devices, in particular organic electroluminescent devices, comprising these compounds.