Results 11 to 20 of about 11,735 (266)
Aromaticity of Heterocirculenes
Chemistry, 2021 This review summarizes the results on the aromaticity of a series of synthesized and hypothetical neutral heterocirculene molecules and their double charged ions.
Nataliya N. Karaush-Karmazin +2 more
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Hydrogenated polycyclic aromatic hydrocarbons: isomerism and aromaticity
Physical Chemistry Chemical Physics, 2020 A simple model based on adjacency matrices is introduced to study the stability of hydrogenated polycyclic aromatic hydrocarbons. Aromaticity governs their relative stability having the most stable isomers the higher number of non-hydrogenated rings.
Paula Pla +3 more
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Biochar, 2023 In the last few decades, sulfonated carbon materials have garnered significant attention as Brønsted solid acid catalysts. The sulfonation process and catalytic activity of sulfonated biochar can be influenced by the aromaticity and degree of ...
Qianqian Xie +5 more
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Hyperconjugative aromaticity and protodeauration reactivity of polyaurated indoliums
Nature Communications, 2019 Hyperconjugative aromaticity combines the concepts of hyperconjugation and aromaticity and explains cyclopentadiene stability. Here, the authors demonstrate extended hyperconjugative aromaticity in a metallated indole ring, which shows extended electron ...
Kui Xiao, Yu Zhao, Jun Zhu, Liang Zhao
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Recent Advances in the Reactions of Cyclic Carbynes
Molecules, 2020 The acyclic organic alkynes and carbyne bonds exhibit linear shapes. Metallabenzynes and metallapentalynes are six- or five-membered metallacycles containing carbynes, whose carbine-carbon bond angles are less than 180°.
Qian Su +7 more
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Chemistry, 2021 Polycyclic aromatic hydrocarbons (PAH) are a prominent substance class with a variety of applications in molecular materials science. Their electronic properties crucially depend on the bond topology in ways that are often highly non-intuitive.
Felix Plasser
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Molecules, 2018 With their versatile molecular topology and aromaticity, porphyrinoid systems combine remarkable chemistry with interesting photophysical properties and nonlinear optical properties.
Tatiana Woller +4 more
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The Silacyclobutene Ring: An Indicator of Triplet State Baird-Aromaticity
Inorganics, 2017 Baird’s rule tells that the electron counts for aromaticity and antiaromaticity in the first ππ* triplet and singlet excited states (T1 and S1) are opposite to those in the ground state (S0). Our hypothesis is that a silacyclobutene (SCB) ring fused with
Rabia Ayub +2 more
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Química Nova, 2009 In this paper the evolution of the concept of aromaticity is discussed. It considers not only historical aspects of the aromaticity concept but also the different criteria (theoretical and experimental) that have appeared to explain the properties of the
Giovanni Finoto Caramori +1 more
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Nanoscale Research Letters, 2009 Abstract Based on our comprehensive theoretical investigation and known experimental results for small boron clusters, we predict the existence of a novel aromatic inorganic molecule, B12H6. This molecule, which we refer to as borozene, has remarkably similar properties to the well-known benzene.
Szwacki, N G, Weber, V, Tymczak, C J
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