890525-43-6

Basic information

• Product Name: 3,4-bis(4-bromophenyl)-2,5-bis(4-(tert-butyl)phenyl)cyclopenta-2,4-dien-1-one
• Synonyms: 3,4-bis(4-bromophenyl)-2,5-bis(4-(tert-butyl)phenyl)cyclopenta-2,4-dien-1-one
• CAS NO: 890525-43-6
• Molecular Weight: 654.484
• Mol File: 890525-43-6.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 3,4-bis(4-bromophenyl)-2,5-bis(4-(tert-butyl)phenyl)cyclopenta-2,4-dien-1-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-bis(4-bromophenyl)-2,5-bis(4-(tert-butyl)phenyl)cyclopenta-2,4-dien-1-one(890525-43-6)
• EPA Substance Registry System: 3,4-bis(4-bromophenyl)-2,5-bis(4-(tert-butyl)phenyl)cyclopenta-2,4-dien-1-one(890525-43-6)

Safety Data

• Hazardous Substances Data: 890525-43-6(Hazardous Substances Data)

Upstream product

• 3549-23-3 methyl 2-(4-tert-butylphenyl)acetate 
• 35578-47-3 4,4'-dibromobenzil 
• 64321-35-3 4-(1,1-Dimethylethyl)phenylmethyl ketone 

Relevant articles and documents

Tetraaryl Cyclopentadienones: Experimental and Theoretical Insights into Negative Solvatochromism and Electrochemistry

The synthesis of a series of tetraaryl cyclopentadienones comprising different substitution patterns is reported. Their photophysical and electrochemical properties are investigated by UV/Vis spectroscopy and cyclic voltammetry as well as by supporting quantum chemical simulations and reveal a distinct effect of substituents on the redox behavior of the molecules as well as the absorption properties of this class of compounds. While electrochemical data display a shift in reduction potential of up to 200 mV between the differently substituted cyclopentadienones, their photophysical investigations in differently polar solvents suggest a negative solvatochromic effect, although protic solvents induce a bathochromic shift. Crystal structure analyses of some derivatives confirm similarity with related cyclopentadienones while providing insight into intermolecular C–H···O and C–H···π interactions in the solid state.