Results 31 to 40 of about 214,764 (339)

Physicochemical interactions between amorphous metal oxide and polymer in metal–polymer hybrid materials

open access: yesMaterials & Design, 2023
Laser–induced amorphous metal oxide is increasingly applied to enhancing interfacial bonding in metal–polymer hybrid materials. This work aims to explore physicochemical interactions between amorphous metal oxide and polymer to understand its bonding ...
Shuangshuang Li   +3 more
doaj   +1 more source

Identification of a Simplest Hypervalent Hydrogen Fluoride Anion in Solid Argon

open access: yesScientific Reports, 2017
Hypervalent molecules are one of the exceptions to the octet rule. Bonding in most hypervalent molecules is well rationalized by the Rundle–Pimentel model (three-center four-electron bond), and high ionic bonding between the ligands and the central atom ...
Meng-Chen Liu   +5 more
doaj   +1 more source

The Nature of the Ionic Bond [PDF]

open access: yesAustralian Journal of Physics, 1976
A new model to describe interionic binding in diatomic crystals is proposed. With the inclusion of an overlap repulsion of logarithmic form along with charge-charge and van der Waals interaction terms, the model is found to yield improved values for the cohesive energy and other parameters of alkali halide crystals.
openaire   +2 more sources

Ionic conductive gels based on deep eutectic solvents

open access: yesInternational Journal of Smart and Nano Materials, 2021
Ionic conductive gels are promising soft conductors for stretchable and flexible electronics. Unfortunately, the basic requirements for an ideal ionic conductive gel, including environmental and chemical stability as well as low toxicity and low cost do ...
Cuiping Liu   +5 more
doaj   +1 more source

Noncollinear magnetic ordering in small Chromium Clusters [PDF]

open access: yes, 1999
We investigate noncollinear effects in antiferromagnetically coupled clusters using the general, rotationally invariant form of local spin-density theory.
A. J. Cox   +50 more
core   +2 more sources

Influence of the structure of ceftazidime on obtaining biologically active cellulosic bandage [PDF]

open access: yesHemijska Industrija, 2017
Biologically active fibers as drug carriers have improved characteristics in comparison with conventional medical therapies. Cellulosic fibers as hydrophilic and biocompatible, nontoxic and eco-friendly make a good polymer matrix for obtaining ...
Rodić-Grabovac Branka B.   +2 more
doaj   +1 more source

Covalent bond shortening and distortion induced by pressurization of thorium, uranium, and neptunium tetrakis aryloxides

open access: yesNature Communications, 2022
The properties of actinide complexes depend on the ionic versus covalent nature of the bonds. Here, the authors report that pressure can distort actinide-oxygen bonding; differences seen for Th, U and Np result from the decreasing size of the atoms.
Jacob J. Shephard   +8 more
doaj   +1 more source

Exploring the Effect of Water Content and Anion on the Pretreatment of Poplar with Three 1-Ethyl-3-methylimidazolium Ionic Liquids

open access: yesMolecules, 2020
We report on the pretreatment of poplar wood with three different 1-ethyl-3-methylimidazolium ionic liquids, [EMim][OAc], [EMim][MeSO3], and [EMim][HSO4], at varying water contents from 0–40 wt% at 100 °C.
Florence J. V. Gschwend   +2 more
doaj   +1 more source

On the Role of Exchange Interaction in Magnetic Ordering and Conductivity of Manganites

open access: yes, 2001
A model of chemical bonding between ions in manganites involving covalent one-electron $\sigma$ bonding is suggested. The covalent one-electron $\sigma$ bonding gives rise to a strongly correlated state of electrons resulting from the exchange ...
Krasinkova, M. V.
core   +1 more source

Origin of life: β‐sheet amyloid conformers as the primordial functional polymers on the early Earth and their role in the emergence of complex dynamic networks

open access: yesFEBS Letters, EarlyView.
The amyloid world hypothesis of the origin‐of‐life posits that the first functional polymers on the early Earth were structurally stable cross‐β‐sheet‐based peptide amyloids capable of Darwinian‐like evolution. Peptide amyloids display self‐replication and information transfer, as well as catalytic, adaptive, and evolutive properties.
Carl Peter J. Maury
wiley   +1 more source

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