Novel spiro-fluorenes from tandem radical addition for liquid crystalline monodisperse conjugated oligomers


Autoria(s): Zhang XJ; Bu LJ; QU Y; Wang LX; Geng YH; Wang FS
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

http://202.98.16.49/handle/322003/11469

http://www.irgrid.ac.cn/handle/1471x/147973

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