Novel spiro-fluorenes from tandem radical addition for liquid crystalline monodisperse conjugated oligomers
Data(s) |
2009
|
---|---|
Resumo |
3'-Nonafluorobutylmethyl-4'-methyl-spiro[cyclopentyl-9,1']fluorenes were successfully synthesized via tandem radical-addition reactions between 9,9-diallylfluorenes and perfluorobutyl iodide in the presence of a radical initiator followed by reduction under mild conditions. Single crystal analysis indicates that two substituents at 3,4-positions of cyclopentane are in a maleinoid form. Accordingly, four oligo(fluorene-co-bithiophene)s with the same molecular length of similar to 10 nm (7 fluorene units and 12 thiophene units) containing one to three novel spiro-fluorene units were synthesized. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Zhang XJ;Bu LJ;QU Y;Wang LX;Geng YH;Wang FS.Novel spiro-fluorenes from tandem radical addition for liquid crystalline monodisperse conjugated oligomers,JOURNAL OF MATERIALS CHEMISTRY ,2009,19(3):399-408 |
Palavras-Chave | #LIGHT-EMITTING-DIODES #GLASSY-NEMATIC OLIGOFLUORENES #BLUE-LIGHT #AMORPHOUS MATERIALS #CHAIN-LENGTH #EMISSION #FILMS #POLYMERS |
Tipo |
期刊论文 |