Results 211 to 220 of about 5,976 (269)
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Angewandte Chemie - International Edition, 2023
We herein present the synthetic approach to a new antiaromatic double aza[7]helicene C that features NN-embedded polycyclic aromatic hydrocarbons (PAHs).
Li Lipf01, Pangkuan Chen
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We herein present the synthetic approach to a new antiaromatic double aza[7]helicene C that features NN-embedded polycyclic aromatic hydrocarbons (PAHs).
Li Lipf01, Pangkuan Chen
exaly +2 more sources
Angewandte Chemie, 2023
Molecular emitters simultaneously generating light at different wavelengths have wide applications. With a small molecule, however, it is challenging to realize two independent radiative pathways.
Younghun Kim +6 more
semanticscholar +1 more source
Molecular emitters simultaneously generating light at different wavelengths have wide applications. With a small molecule, however, it is challenging to realize two independent radiative pathways.
Younghun Kim +6 more
semanticscholar +1 more source
All-Metal Aromaticity and Antiaromaticity
Chemical Reviews, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
Alexander I Boldyrev, Lai-Sheng Wang
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Journal of the American Chemical Society, 2023
Experimental and theoretical rationalization of bond-shift valence tautomerization, characterized by double-well potential surfaces, is one of the most challenging topics of study among the rich electronic properties of antiaromatic molecules.
Y. Mizuno +7 more
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Experimental and theoretical rationalization of bond-shift valence tautomerization, characterized by double-well potential surfaces, is one of the most challenging topics of study among the rich electronic properties of antiaromatic molecules.
Y. Mizuno +7 more
semanticscholar +1 more source
Journal of the American Chemical Society, 2022
We describe reductive dehydrogenative cyclizations that form hepta-, nona-, and decacyclic anionic graphene subunits from mono- and bis-helicenes with an embedded five-membered ring.
Zheng Zhou +9 more
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We describe reductive dehydrogenative cyclizations that form hepta-, nona-, and decacyclic anionic graphene subunits from mono- and bis-helicenes with an embedded five-membered ring.
Zheng Zhou +9 more
semanticscholar +1 more source
Increased Antiaromaticity through Pentalene Connection in [n]Cyclo-1,5-dibenzopentalenes.
Organic Letters, 2022Conjugated nanohoops incorporating nonalternant hydrocarbons have altered optoelectronic properties compared to [n]cycloparaphenylenes or other purely aromatic hoops. We synthesized [n]cyclo-1,5-dibenzopentalenes (n = 4, 5), in which nonalternant dibenzo[
Jan S. Wössner +5 more
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Photoswitchable Keto-Enol Tautomerism Driven by Light-Induced Change in Antiaromaticity.
Organic Letters, 2022The bidirectional interconversion between ketone and enol structures of 4-cyclopentene-1,3-dione derivatives was realized by photoswitching of fused dithienylethene using UV and visible light. A loss of antiaromaticity offered the driving force for light-
Hanwei Lu +4 more
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Journal of the American Chemical Society, 2021
The corrole derivative meso-oxoisocorrole has been theoretically predicted to be antiaromatic, despite its formally cross conjugated electronic system.
Kento Ueta +9 more
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The corrole derivative meso-oxoisocorrole has been theoretically predicted to be antiaromatic, despite its formally cross conjugated electronic system.
Kento Ueta +9 more
semanticscholar +1 more source
Visualisation of Chemical Shielding Tensors (VIST) to Elucidate Aromaticity and Antiaromaticity**
European Journal of Organic Chemistry, 2021 Aromaticity is a central concept in chemistry, pervading areas from biochemistry to materials science. Recently, chemists also started to exploit intricate phenomena such as the interplay of local and global (anti)aromaticity or aromaticity in non‐planar
Felix Plasser, Florian Glöcklhofer
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