Results 81 to 90 of about 2,216 (186)

Aromaticity‐Dependent Memristive Switching

open access: yesAdvanced Electronic Materials
In recent years, memristors have drawn attention as non‐volatile memory devices for advanced computing engineering. The features of memristors, such as hysteresis, high resistance state to low resistance state ratio, retention time, etc., are determined ...
Ewelina Cechosz   +5 more
doaj   +1 more source

antiaromatic compounds

open access: yes, 2014
Citation: 'antiaromatic compounds' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00382 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

On the Aromaticity in Cyclic H‐Bonded Chains: Linking HOMIA Descriptor to Molecular Properties

open access: yesChemistrySelect, Volume 11, Issue 5, 5 February 2026.
ABSTRACT Aromaticity is a central concept in organic chemistry to explain the high stability of conjugated rings. This study extends this concept to cyclic hydrogen‐bonded (H‐bonded) chains by introducing a modified descriptor, the harmonic oscillator model of intermolecular aromaticity (HOMIA), to quantify aromaticity in cyclic H‐bonded chains of HCN,
Murillo H. Queiroz   +3 more
wiley   +1 more source

TOPOLOGIA DOS ORBITAIS MOLECULARES DE POLIENOS PARA DEDUZIR ENERGIAS RELATIVAS E AVALIAR AROMATICIDADE

open access: yesQuímica Nova
A didactic alternative approach is proposed for deducing the molecular orbital topology of acyclic and cyclic polyenes and then evaluating their bonding, antibonding, and nonbonding character.
Silvio Cunha
doaj   +1 more source

Hydrogenation Properties of the TiBx Structures

open access: yes, 2011
Titanium borates show promissing hydrogen storage characteristics. Structural relaxation around individual hydrogen atoms and the binding energies are studied by means of the density functional theory methods for a number of hydrogenated TiB2, TiB and ...
Makridis, S. S.   +6 more
core   +1 more source

Perimeter ring currents in benzenoids from Pauling bond orders [PDF]

open access: yes, 2016
It is shown that the ring currents in perimeter hexagonal rings of Kekulean benzenoids, as estimated within the Randić conjugated-circuit model, can be calculated directly without tedious pairwise comparison of Kekulé structures or Kekulé counting for ...
Bird, W.H.   +3 more
core   +1 more source

Aromaticity and Antiaromaticity in Zintl Clusters

open access: yesChemistry – A European Journal, 2018
AbstractOriginally, the concepts of aromaticity and antiaromaticity were introduced to explain the stability and reactivity of unsaturated organic compounds. Since then, they have been extended to other species with delocalized electrons including various saturated systems, organometallic compounds, and even inorganic clusters and molecules.
Chao Liu   +4 more
openaire   +4 more sources

Open-shell magnetic states in alternant and non-alternant nanographenes: Conceptions and misconceptions

open access: yesCarbon Trends
In contrast to alternant, in non-alternant nanographenes (NGRs) and graphene nanoribbons (GNRs) no “sublattice structure” can be defined, associated with significant conceptual and computational simplifications. This leads to some fundamental differences
Aristides D. Zdetsis
doaj   +1 more source

Synthesis of Antiaromatic Compounds Utilizing Hyperconjugation and Anionic Charges [PDF]

open access: yes, 2023
application/pdf【学位授与の要件】中央大学学位規則第4条第1項【論文審査委員主査】石井 洋一(中央大学理工学部教授)【論文審査委員副査】福澤 信一(中央大学理工学部教授)、不破 春彦(中央大学理工学部教授)、佐藤 博彦(中央大学理工学部教授)、斎藤 雅一(埼玉大学大学院理工学研究科教授)departmental bulletin ...
ITO,Shotaro   +2 more
core  

Aromaticity as a Guiding Concept for Spectroscopic Features and Nonlinear Optical Properties of Porphyrinoids

open access: yesMolecules, 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
doaj   +1 more source

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