36240-98-9

Upstream product

• 18066-91-6 4,4'-(bromomethylene)bis(bromobenzene) 
• 3988-03-2 bis(4-bromophenyl)methanone 

Downstream Products

• 230957-98-9 bis(4',4-bromophenyl)methylenebicyclo<4.4.1>undecane episulfide 
• 67132-33-6 4,4'-dibromothiobenzophenone S-oxide 
• 230957-99-0 bis(4-bromophenyl)methylenebicyclo<4.4.1>undecane 
• 230958-02-8 1,1-bis(4'-bromophenyl)-2,2-di-tert-butylethene 
• 230958-00-6 bis(4'-bromophenyl)methylenedi-tert-butyl-methane episulfide 

Relevant academic research and scientific papers

COMPOUND FOR ORGANIC ELECTRONIC ELEMENT, ORGANIC ELECTRONIC ELEMENT USING THE SAME, AND AN ELECTRONIC DEVICE THEREOF

Provided is a compound which is represented by chemical formula 1, wherein the compound exhibits high luminous efficiency and low driving voltage and increases lifespan of a device. Also, provided are an organic electric element using the same and an electronic device thereof.

Structure-Property Relationships in Trimethylenemethane-Type Biradicals. 2. Synthesis and EPR Spectral Characterization of Dinitroxide Biradicals

Several trimethylenemethane-type (TMM-type) dinitroxide biradicals have been prepared that differ in tert-butylaminoxylphenyl ring torsion angles by virtue of different steric demands of their "spin-protecting groups". In addition, the synthesis of a TMM-type dinitroxide having a planar π-system is reported. The synthetic route employed for the planar TMM-type biradical is general and should therefore expand the utility of TMM-type biradicals that are susceptible to bond torsions that attenuate exchange coupling. The compounds presented are designed to be effective to map out J-coupling/conformation space in TMM-type biradicals. EPR spectroscopic parameters (hfcc and D-values) were compared to determine if their values reflected differences in conformation in the series of biradicals. Interestingly, neither N- nor H-hfcc varied within our series of biradicals/ monoradicals in a regular fashion, indicating that there is no apparent relationship between N- or H-hfcc and conformation (as judged by molecular mechanics calculations). However, D-values, estimated from relative intensities of Δms = 1 and Δms = 2 transitions, are consistent with a varied degree of delocalization in the dinitroxides: smaller D-values for biradicals having smaller aryl torsions (and greater delocalization), and larger D-values for dinitroxides having greater aryl torsions (and less delocalization). All the biradicals studied, except 5, exhibited linear Curie plots. The linear Curie plots are consistent with both triplet ground-states and singlet-triplet degeneracies. Interestingly, dinitroxide 6 exhibited a linear Curie plot, despite the lack of a π-coupling fragment. Biradical 5, however, is a ground-state singlet species with the triplet lying about 140 cal/mol above the singlet.