912-61-8

Basic information

• Product Name: 1,2,3,5-Tetraphenylbenzene
• Synonyms: 1,2,3,5-Tetraphenylbenzene;3',5'-Diphenyl-1,1':2',1''-terbenzene
• CAS NO: 912-61-8
• Molecular Formula: C₃₀H₂₂
• Molecular Weight: 382.4957
• Mol File: 912-61-8.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 493.9°Cat760mmHg
• Flash Point: 252.6°C
• Appearance: /
• Density: 1.091g/cm³
• Vapor Pressure: 2.05E-09mmHg at 25°C
• Refractive Index: 1.629
• CAS DataBase Reference: 1,2,3,5-Tetraphenylbenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2,3,5-Tetraphenylbenzene(912-61-8)
• EPA Substance Registry System: 1,2,3,5-Tetraphenylbenzene(912-61-8)

Safety Data

• Hazardous Substances Data: 912-61-8(Hazardous Substances Data)

Usage

Chemical composition

1,2,3,5-tetraphenylbenzene is composed of a benzene ring with four phenyl groups attached at different positions.

Physical state

It is a colorless crystalline solid.

Solubility

Insoluble in water.

Melting point

High melting point (specific value not provided).

Usage in organic synthesis

Commonly used as a building block in organic synthesis.

Precursor

Acts as a precursor for the preparation of more complex organic compounds.

Structural properties

Rigid and planar structure.

Research applications

Used as a model compound for studying the properties of large conjugated systems.

Fluorescent dye

Utilized as a fluorescent dye due to its structural properties.

Advanced material production

Employed in the production of advanced materials such as liquid crystals and polymers.

InChI:InChI=1/C30H22/c1-5-13-23(14-6-1)27-21-28(24-15-7-2-8-16-24)30(26-19-11-4-12-20-26)29(22-27)25-17-9-3-10-18-25/h1-22H

Upstream product

• 591-50-4 iodobenzene 
• 536-74-3 phenylacetylene 
• 6971-41-1 3,4,5,6-tetraphenyl-1,2-dihydro-o-phthalic anhydride 
• 97388-36-8 2'-iodo-5'-phenyl-1,1':3',1''-terphenyl 
• 103-82-2 phenylacetic acid 
• 1484-88-4 2,4,6-triphenylpyrilium perchlorate 

Relevant articles and documents

Formation of polyaromatic compounds by coupling of aryl iodides with arylacetylenes in the presence of palladium-based ligand-free catalytic systems

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Syntheses and Spectral Characteristics of Seven Polyphenyls Containing Highly Branched para-Phenylene Ring(s)

Seven polyphenyls, including four new compounds, 2,2',6'- (2) and 3,2',6'-triphenyl-p-terphenyl (3), 3',5'-diphenyl-p-quarterphenyl (4), and 2-phenyl-3'-(2-biphenylyl)-p-terphenyl (7), were synthesized by the Ullmann coupling reaction of aryl iodide(s) or by the Kharash type coupling reaction of aryl Grignard reagent with an aryl iodide catalyzed by bis(acetylacetonato)-nickel(II).Infrared spectral studies of the polyphenyls showed that the range of 730-770 cm-1, generally accepted as the position of the out-of-plane C-H bending bands of the phenyl ring, should be widened slightly to 730-786 cm-1.The high frequency bands were confirmed to be correlated closely to the overcrowding by terminal rings in the complex structures.Proton magnetic resonance spectral studies indicated that he characteristic spectral features of the branched polyphenyls were consistent with their conformational aspects deduced from stereomodels.In the ultraviolet spetcral studies the polyphenyls containing highly branched p-phenylene ring(s) showed intense K-bands or shoulders at locations very similar to those of the corresponding linear polyphenyls containing the same number of p-phenylene rings. Keywords -- Ullmannn reaction; Ni-complex-catalyzed cross-coupling; quinquephenyl; sexiphenyl; octiphenyl; IR; UV; 1H-NMR