Results 81 to 90 of about 18,171 (291)

High-temperature high-pressure phases of lithium from electron force field (eFF) quantum electron dynamics simulations [PDF]

open access: yes, 2011
We recently developed the electron force field (eFF) method for practical nonadiabatic electron dynamics simulations of materials under extreme conditions and showed that it gave an excellent description of the shock thermodynamics of hydrogen from ...
Goddard, William A., III   +2 more
core   +1 more source

Prediction of new sp3 silicon and germanium allotropes from the topology-based multiscale method

open access: yes, 2017
This article continues our recent publication [I.A. Baburin and D.M. Proserpio and V.A. Saleev and A.V. Shipilova, Phys. Chem. Chem. Phys.17, 1332 (2015)] where we have presented a comprehensive computational study of sp3 carbon allotropes based on the ...
Fadda, Giuseppe   +3 more
core   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Computing Fourth Atom-bond Connectivity Index of V-Phenylenic Nanotubes and Nanotori

open access: yesActa Chimica Slovenica, 2013
Among topological descriptors connectivity topological indices are very important and they have a prominent role in chemistry. One of them is atom-bond connectivity (ABC) index defined as ABC(G)= [formula:see text], in which degree of vertex v denoted ...
Mohammad Reza Farahani
doaj  

Graph-theoretic and computational analysis of QSAR molecular descriptors for single chain diamond silicates

open access: yesDiscover Chemistry
This study presents a comprehensive graph-theoretic and computational analysis of Quantitative Structure–Activity Relationship (QSAR) molecular descriptors for Single Chain Diamond Silicates (CSn), a crucial class of silicate structures defined by their ...
S. Mohankumar   +2 more
doaj   +1 more source

Study of Hardness of Superhard Crystals by Topological Indices

open access: yesJournal of Chemistry, 2021
Topological indices give immense information about a molecular structure or chemical structure. The hardness of materials for the indentation can be defined microscopically as the total resistance and effect of chemical bonds in the respective materials.
Xiujun Zhang   +3 more
doaj   +1 more source

Properties of Poly (isoprene) - Model Building in the Melt and in Solution

open access: yes, 2002
Properties of 1,4-\textit{trans} poly (isoprene) at ambient conditions are determined by simulations on two length scales based on two different models: a full-atomistic and a mesoscopic one.
Faller, Roland, Reith, Dirk
core   +1 more source

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

open access: yesAdvanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu   +9 more
wiley   +1 more source

Analysis of expected value of connectivity indices of random 2T2 kink chains

open access: yesFrontiers in Physics
In this work, we calculated the product connectivity index of three structures for the T2-type twists and formulated expressions of expected values of the forgotten index, atom bond connectivity index, sum connectivity index, product connectivity index ...
Xuemin Ling   +8 more
doaj   +1 more source

Some Topological Invariants of Graphs Associated with the Group of Symmetries

open access: yesJournal of Chemistry, 2020
A topological index is a quantity that is somehow calculated from a graph (molecular structure), which reflects relevant structural features of the underlying molecule.
Chang-Cheng Wei   +6 more
doaj   +1 more source

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