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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.


Papers
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Journal ArticleDOI
08 Mar 2019
TL;DR: In this paper, four new two-photon polymerization initiators have successfully synthesized with Dπ-A-π-D type structure in which the carbazole or phenothiazine moiety acts as a donor, phenylacetylenyl as a conjugate linker and the Fluorenone or thioxanthone as an acceptor.
Abstract: Four new two-photon polymerization initiators have successfully synthesized with D–π–A–π–D type structure in which the carbazole or phenothiazine moiety acts as a donor, phenylacetylenyl as a conjugate linker and the Fluorenone or thioxanthone as an acceptor. These four compounds exhibited low fluorescence quantum yields (Φ) of FT-CAA-C6 (1.65%), FT-PTAA-C6 (0.01%), TX-CAA-C6 (3.56%) and TX-PTAA-C6 (0.02%) in dichloromethane. And, the δTPA values of FT-PTAA-C6 reached a maximum value of 527 GM. In addition, three-dimensional woodpile microstructure was fabricated via two-photon polymerization using FT-CAA-C6 as an initiator which possessed potential applications due to simple preparation.

5 citations

Patent
25 Feb 2015
TL;DR: The redox method of four alkyne and polyenynes and serves as non-silver sensitive material applied widely The fluorenone serving as a medical intermediate is used for synthesis of various drugs as mentioned in this paper.
Abstract: The invention relates to a fluorenone derivative, a preparation method of the fluorenone derivative and a redox method of synthetic fluorenone The preparation method includes a, performing precursor synthesis; b, performing target product synthesis; c, performing purifying The fluorenone derivative is obtained by the redox method of four alkyne and polyenynes and serves as non-silver sensitive material applied widely The fluorenone serving as a medical intermediate is used for synthesis of various drugs

5 citations

Journal ArticleDOI
TL;DR: Diene triplets in predominantly the s - cis conformation are formed efficiently by back electron transfer to diene cation radicals in DMF and dichloromethane.

4 citations

Journal ArticleDOI
TL;DR: In this paper, the average energies transferred per collision were found to vary with vibrational energy, the energy dependences of the collisional efficiency eventually level off, and collisional relaxation of vibrationally excited fluorenone diluted with bath gases was investigated.
Abstract: Intensities and decay rates of CO2-laser induced delayed fluorescence are used to probe collisional relaxation of vibrationally excited fluorenone diluted with bath gases: He, N2, Kr. The average energies 〈ΔE〉 transferred per collision are found to vary with vibrational energy, the energy dependences of the collisional efficiency eventually level off.

4 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202311
202221
202124
202026
201928
201822