Results 21 to 30 of about 15,805 (306)

On chemical bonding and helium distribution in hcp beryllium [PDF]

open access: green, 2011
Chemical inertness is the key property of helium determining its solubility, distribution and accumulation kinetics in metals. Against all expectations, our ab initio calculations show a substantial chemical bonding between He and Be atoms in the hcp-Be matrix when He occupies a non-symmetric position in a basal plane.
A. S. Bakai   +2 more
openalex   +3 more sources

Multinuclear beryllium amide and imide complexes: structure, properties and bonding

open access: hybridDalton Transactions
Multinuclear beryllium amides and imides were prepared and the bonding situation in these compounds was evaluated with the intrinsic bond orbital localization method to evaluate if electronic or steric factors are decisive for the complex geometries.
Deniz F. Bekiş   +3 more
openalex   +5 more sources

Large Stabilization Effects by Intramolecular Beryllium Bonds in Ortho-Benzene Derivatives

open access: yesMolecules, 2021
Intramolecular interactions are shown to be key for favoring a given structure in systems with a variety of conformers. In ortho-substituted benzene derivatives including a beryllium moiety, beryllium bonds provide very large stabilizations with respect ...
Tsai I-Ting   +4 more
doaj   +1 more source

Study of Beryllium, Magnesium, and Spodium Bonds to Carbenes and Carbodiphosphoranes

open access: yesMolecules, 2021
The aim of this article is to present results of theoretical study on the properties of C⋯M bonds, where C is either a carbene or carbodiphosphorane carbon atom and M is an acidic center of MX2 (M = Be, Mg, Zn).
Mirosław Jabłoński
doaj   +1 more source

Side‐On Bonded Beryllium Dinitrogen Complexes [PDF]

open access: yesAngewandte Chemie International Edition, 2020
AbstractThe preparation and spectroscopic identification of the complexes NNBe(η2‐N2) and (NN)2Be(η2‐N2) and the energetically higher lying isomers Be(NN)2and Be(NN)3are reported. NNBe(η2‐N2) and (NN)2Be(η2‐N2) are the first examples of covalently side‐on bonded N2adducts of a main‐group element.
Guohai Deng   +5 more
openaire   +3 more sources

Perturbating Intramolecular Hydrogen Bonds through Substituent Effects or Non-Covalent Interactions

open access: yesMolecules, 2021
An analysis of the effects induced by F, Cl, and Br-substituents at the α-position of both, the hydroxyl or the amino group for a series of amino-alcohols, HOCH2(CH2)nCH2NH2 (n = 0–5) on the strength and characteristics of their OH···N or NH···O ...
Al Mokhtar Lamsabhi   +2 more
doaj   +1 more source

Interaction of Small Hydrocarbons with Fusion Relevant Beryllium Thin Films

open access: yesMehran University Research Journal of Engineering and Technology, 2021
Ion-surface collision studies are carried out with small deuterated hydrocarbon cations i.e. CDx + with x = 2-4 colliding with fusion relevant Beryllium (Be) thin films with ions incident energy as low as 0 eV and as high as Ein = 100 eV.
Bilal Rasul, Aroog g
doaj   +1 more source

The use of a cluster-associate pattern for calculation of melt viscosity

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2022
The liquid state of the substance is the most complex for theoretical description. Modern ideas about the liquid and its viscosity are reduced to the following: in the structure of the liquid, the spatial arrangement of atoms is not fixed, as in a ...
А.Ш. Кажикенова   +5 more
doaj   +1 more source

Unveiling the bonding in HNBeCO: A valence bond theory approach [PDF]

open access: yesKragujevac Journal of Science
In this study, the bonding and electronic structure of the HNBeCO molecule were investigated using high level classical Valence Bond (VB) theory. Starting from a full-structure calculation involving 175 VB structures, we identified and selected only ...
Đorđević Slađana, Radenković Slavko
doaj   +1 more source

Cooperativity in beryllium bonds

open access: yesPhys. Chem. Chem. Phys., 2014
Positive cooperativity is found in beryllium bonded complexes similar to that described for hydrogen bonded systems.
Alkorta, Ibon   +3 more
openaire   +3 more sources

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