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: In this article , an imide-functionalized fluorenone (FOI) and its cyanated derivative (FCNI) were constructed from a series of polymers with high electron mobility of 0.11 cm2 V-1 s-1 .
Abstract: The development of high-performance n-type polymer semiconductors is powered by the design and synthesis of electron-deficient building blocks with optimized physicochemical properties. By meticulously installing an imide group onto fluorene and its cyanated derivative, we report here two very electron-deficient building blocks, imide-functionalized fluorenone (FOI) and its cyanated derivative (FCNI), both featuring a deep-lying lowest unoccupied molecular orbital energy level down to -4.05 eV and highly coplanar framework, endowing them ideal units for constructing n-type polymers. Thus, a series of polymers are built from them, exhibiting unipolar n-type transport character with a highest electron mobility of 0.11 cm2 V-1 s-1 . Hence, FOI and FCNI offer a remarkable platform for accessing high-performance n-type polymers and the imide functionalization of appropriate (hetero)arenes is a powerful strategy for developing polymers with deep-lying LUMOs for n-type organic electronics.
7 citations
TL;DR: In this article, the properties of 9, 10-anthraquinone and 9-fluorenone radical anion adsorbed on the surface of oxides with electrondonating properties were studied by ESR and electron-nuclear double resonance.
Abstract: Paramagnetic complexes of 9, 10-anthraquinone and 9-fluorenone adsorbed on the surface of calcium, magnesium, zinc, zirconium, and aluminum oxides and modified Al2O3 as well as on mixed oxides were studied by ESR and electron-nuclear double resonance. Radical anions that do not interact with Lewis acid sites are generated on the surfaces of oxides with electrondonating properties (CaO, MgO). Paramagnetic complexes of the anthraquinone or fluorenone radical anion with Lewis acid sites (coordinatively unsaturated metal cations) are formed in other cases. Several types of similar complexes can be formed. Mechanisms of interaction of the probe molecules with the metal oxide surface were proposed.
7 citations
TL;DR: The title condensations gave respectively: gem-bisarylated cyclic amines 3a-k or monoarylated unsaturated cyclIC amines 4a-g, 1,3-bi-cyclohexadienes 6a, 6b, the condensed bicyclo [2,2, 2]-octane 8, and the fluorenone 10 on treatment with polyphosphoric acid (PPA).
Abstract: The title condensations gave respectively: gem-bisarylated cyclic amines 3a–k or monoarylated unsaturated cyclic amines 4a–g, 1,3-bisarylated cyclohexadienes 6a, 6b, the condensed bicyclo [2,2,2]-octane 8. In addition the aromatic ketone 9 gave the fluorenone 10 on treatment with polyphosphoric acid (PPA).
7 citations
TL;DR: In this article, 1H and 13C CIDNP effects in the reactions of Na and Li salts of ketyls and dianions derived from benzophenone and fluorenone with acetic anhydride in tetrahydrofuran and dimethoxyethane were investigated.
7 citations
TL;DR: In this article, flash vacuum pyrolysis of phenylazonaphthols and nitrosonaphthol at 700°C and 0.02-Torr yielded quinoline, isoquinoline, indene and naphtholic compounds.
7 citations