Results 21 to 30 of about 18,467 (263)

Questions of Mirror Symmetry at the Photoexcited and Ground States of Non-Rigid Luminophores Raised by Circularly Polarized Luminescence and Circular Dichroism Spectroscopy: Part 1. Oligofluorenes, Oligophenylenes, Binaphthyls and Fused Aromatics

Molecules, 2018
We report experimental tests of whether non-rigid, π-conjugated luminophores in the photoexcited (S1) and ground (S0) states dissolved in achiral liquids are mirror symmetrical by means of circularly polarized luminescence (CPL) and circular dichroism
Michiya Fujiki, Julian R. Koe, Takashi Mori, Yoshihiro Kimura   +3 more
doaj   +1 more source

Synthesis and Photophysical Study of 2′-Deoxyuridines Labeled with Fluorene Derivatives

Molecules, 2012
We examined microenvironment-sensitive fluorescent 2′-deoxyuridines labeled with fluorene derivatives that exhibited solvent-dependent photophysical properties.
Gil Tae Hwang, Sang Keun Woo, Hyun Yi Cho   +2 more
doaj   +1 more source

Construction of Ultrastable Conjugated Microporous Polymers Containing Thiophene and Fluorene for Metal Ion Sensing and Energy Storage

Micromachines, 2022
In this study, we have used the one-pot polycondensation method to prepare novel 2D conjugated microporous polymers (Th-F-CMP) containing thiophene (Th) and fluorene (Fl) moieties through the Suzuki cross-coupling reaction. The thermogravimetric analysis
Mohamed Gamal Mohamed, Huan-Yu Hu, Manivannan Madhu, Mohsin Ejaz, Santosh U. Sharma, Wei-Lung Tseng, Maha Mohamed Samy, Cheng-Wei Huang, Jyh-Tsung Lee, Shiao-Wei Kuo   +9 more
doaj   +1 more source

Preparation of MgO Self-Epitaxial Films for YBCO High-Temperature Coated Conductors

Micromachines, 2023
Ion beam-assisted deposition (IBAD) has been proposed as a promising texturing technology that uses the film epitaxy method to obtain biaxial texture on a non-textured metal or compound substrate. Magnesium oxide (MgO) is the most well explored texturing
Fei Yu, Yan Xue, Chaowei Zhong, Jiayi Song, Qiong Nie, Xin Hou, Baolei Wang   +6 more
doaj   +1 more source

Über Fluoren‐perhydrür [PDF]

Berichte der deutschen chemischen Gesellschaft, 1908
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openaire   +1 more source

Fluorene–Triphenylamine-Based Bipolar Materials: Fluorescent Emitter and Host for Yellow Phosphorescent OLEDs

Applied Sciences, 2020
In this study, two new bipolar materials were designed and synthesized: N1-(9,9-diphenyl-9H-fluoren-2-yl)-N1-(4,6-diphenylpyrimidin-2-yl)-N4,N4-diphenylbenzene-1,4-diamine (FLU-TPA/PYR) and N1-(4-(4,6-diphenyl-1,3,5-triazin-2-yl)phenyl)-N1-(9,9-diphenyl ...
Ramanaskanda Braveenth, Hasu Jung, Keunhwa Kim, Bo Mi Kim, Il-Ji Bae, Miyoung Kim, Kyu Yun Chai   +6 more
doaj   +1 more source

Synthesis of 3-Hydroxy-9H-fluorene-2-carboxylates via Michael Reaction, Robinson Annulation, and Aromatization

Organics, 2022
A series of 3-hydroxy-fluorene-2-carboxylate compounds were prepared from Michael addition of acetoacetate to 2-benzylideneindan-l-one followed by Robinson annulation and aromatization.
Yu-Min Wang, Yi-Hung Liu, Shiuh-Tzung Liu   +2 more
doaj   +1 more source

Supramolecular organization in fluorene/indenofluorene-oligothiophene alternating conjugated copolymers [PDF]

, 2005
A series of conjugated copolymers containing fluorene or indenofluorene units alternating with oligothiophene segments, with potential interest for use as the active layer in field-effect transistors, is investigated.
Lazzaroni, Roberto, Grimsdale, A.C., Surin, M., Grimsdale, Andrew. C., Surin, Mathieu, Müllen, Klaus, Sonar, Prashant, Sonar, P., Grimsdale, A., Leclère, Philippe, Leclere, P., Müllen, K., Lazzaroni, R.   +12 more
core   +1 more source

Pursuing the Complexity of Alzheimer’s Disease: Discovery of Fluoren-9-Amines as Selective Butyrylcholinesterase Inhibitors and N-Methyl-d-Aspartate Receptor Antagonists

Biomolecules, 2020
Alzheimer’s disease (AD) is a complex disorder with unknown etiology. Currently, only symptomatic therapy of AD is available, comprising cholinesterase inhibitors and N-methyl-d-aspartate (NMDA) receptor antagonists. Drugs targeting only one pathological
Jan Konecny, Anna Misiachna, Martina Hrabinova, Lenka Pulkrabkova, Marketa Benkova, Lukas Prchal, Tomas Kucera, Tereza Kobrlova, Vladimir Finger, Marharyta Kolcheva, Stepan Kortus, Daniel Jun, Marian Valko, Martin Horak, Ondrej Soukup, Jan Korabecny   +15 more
doaj   +1 more source

Bright Solvatochromic Fluorophores With Dual Emission Enabled by a Donor-Engineering Strategy. [PDF]

Chemistry
We screened tertiary amines for installation on the donor unit of highly emissive donor–acceptor‐type solvatochromic fluorophores based on a 9,9‐dimethyl‐2‐phenyl‐9H‐fluorene scaffold, with the aim of enabling two bright emissive states to coexist. As a result, the azetidine derivative [4] and the azepane derivative [7] exhibited clear dual emission ...
Konishi K, Konishi GI.
europepmc   +2 more sources