Topic
Fluorenone
About: Fluorenone is a research topic. Over the lifetime, 1067 publications have been published within this topic receiving 17162 citations. The topic is also known as: Diphenylene ketone & 9-Oxofluorene.
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TL;DR: This work has shown direct access to functionalized fluorene and fluorenone derivatives through benzannulation of 1-indanylidene-malononitrile with Morita-Baylis-Hillman carbonates with metal-free carbonates.
14 citations
TL;DR: The fluorescence titration experiments confirm 1:1 stoichiometric ratio with high-binding constant and very low limit of detection (LoD) values and the fluorescence lifetime measurement and reversible binding study results support the practical importance of 1.1:1 ratio.
14 citations
TL;DR: In this article, the reaction of C 8 K avec des benzoates de methyle, d'ethyle, biphenyledicarboxylate-2,2' de dimethyle et la fluorenone
Abstract: Reaction de C 8 K avec des benzoates de methyle, d'ethyle, biphenyledicarboxylate-2,2' de dimethyle et la fluorenone
14 citations
TL;DR: In this article, the effect of ketonic defects on electrical properties of organic field effect transistors (OFETs) was examined in fluorene end capped fused bithiophene oligomers (BFTT).
Abstract: The effect of ketonic defects on electrical properties, i.e., the performance of organic field-effect transistors (OFETs) was examined in fluorene end capped fused bithiophene oligomers (BFTT). The long wavelength emission at 2.1–2.3eV resulting from the ketonic defects was observed in photoluminescence spectra of BFTT films after UV irradiation in air. In addition, the peak corresponding to the carbonyl stretching mode of the fluorenone moiety at 1721cm−1 was also apparent after UV irradiation for periods longer than 6h in air. These observations confirm that ketonic defects are present in the fluorene units of BFTT after photo-oxidation. The threshold voltage (Vth), i.e., switch-on voltage, of OFETs was increased and field-effect mobility (μFET) was decreased after the formation of the ketonic defects, since these defects induce the formation of numerous trap sites in the bandgap of the semiconducting conjugated oligomer.
14 citations
TL;DR: In this paper, an efficient method for the synthesis of fluorenebisphenoxy derivatives from fluorenone and phenoxy compounds was successfully performed by the combined use of concentrated sulfuric acid as catalyst and 3-mercaptopropionic acid as co-catalyst.
Abstract: An efficient method for the synthesis of fluorenebisphenoxy derivatives from fluorenone and phenoxy compounds is successfully performed by the combined use of concentrated sulfuric acid as catalyst and 3-mercaptopropionic acid as co-catalyst. Several fluorenebisphenoxy derivatives are obtained in good yields by this one-step reaction.
14 citations