4269-14-1

Basic information

• Product Name: 4-phenyl-9H-fluoren-9-one
• Synonyms: 4-phenyl-9H-fluoren-9-one
• CAS NO: 4269-14-1
• Molecular Weight: 256.304
• Mol File: 4269-14-1.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 4-phenyl-9H-fluoren-9-one(CAS DataBase Reference)
• NIST Chemistry Reference: 4-phenyl-9H-fluoren-9-one(4269-14-1)
• EPA Substance Registry System: 4-phenyl-9H-fluoren-9-one(4269-14-1)

Safety Data

• Hazardous Substances Data: 4269-14-1(Hazardous Substances Data)

Upstream product

• 4269-17-4 4-bromo-9H-fluorene-9-one 
• 98-80-6 phenylboronic acid 
• 4688-76-0 2-Biphenylboronic acid 
• 392-83-6 o-trifluoromethylphenyl bromide 
• 610-97-9 o-iodo-methyl-benzoic acid 
• 68089-73-6 tribenzocyclohepta-2,4,6-trien-1-one 
• 7071-83-2 9-fluorenone-4-carbonyl chloride 
• 110937-44-5 o-terphenyl-2-carboxylic acid 
• 98804-29-6 o-terphenyl-3'-carboxylic acid 

Relevant articles and documents

Spirobifluorene Regioisomerism: A Structure–Property Relationship Study

The present works report the first structure–property relationship study of a key class of organic semiconductors, that is, the four spirobifluorene positional isomers possessing a para-, meta- or ortho-linkage. The remarkable and surprising impact of the ring bridging and of the linkages on the electronic properties of the regioisomers has been particularly highlighted and rationalised. The impact of the ring bridging on the photophysical properties has been stressed with notably the different influence of the linkages and the bridge on the singlet and triplet excited states. The first member of a new family of spirobifluorenes substituted in the 1-position, which presents better performance in blue phosphorescent OLEDs than those of its regioisomers, is reported. These features highlight not only the great potential of 1-substituted spirobifluorenes, but also the remarkable impact of regioisomerism on electronic properties.