1206629-73-3Relevant academic research and scientific papers
Extended liquid-crystalline oligofluorenes with photo- and electroluminescence
Del Barrio, Jesus,Chinelatto Jr., Luiz Silvino,Serrano, Jose Luis,Oriol, Luis,Pinol, Milagros,Bolink, Henk J.
, p. 2785 - 2795 (2011/02/18)
In this paper we report the synthesis and characterization of a series of low-molecular weight light-emitting molecules based on short oligofluorene cores, from one to three 9,9-dioctylfluorene units, elongated at the 2- and 7-positions by means of promes
Synthesis and photoluminescence properties of π-extended fluorene derivatives: the first example of a fluorescent solvatochromic nitro-group-containing dye with a high fluorescence quantum yield
Kotaka, Hidehiro,Konishi, Gen-ichi,Mizuno, Kazuhiko
experimental part, p. 181 - 184 (2010/03/04)
Functional π-extended fluorene derivatives, 2,7-di(p-substituted-phenyl)fluorenes containing different functional groups such as hydrogen, trimethylsilyl (TMS), methoxycarbonyl, cyano, and nitro groups, were synthesized. Except for the nitro group, the resulting compounds exhibited extremely high fluorescence quantum yields (ΦF >0.85 in chloroform). The diphenylfluorene containing nitro groups have higher fluorescence quantum yield (ΦF = 0.31 in N,N'-dimethyl-formamide) than other nitro-group-containing fluorophores which were previously reported (ΦF 0.1). Furthermore, this compound exhibited large Stokes' shift with green to orange emission and unique on-off behavior of the emission by solvents.
