Results 61 to 70 of about 205,156 (280)

Does Koopmans’ Paradigm for 1-Electron Oxidation Always Hold? Breakdown of IP/E\u3csub\u3eox\u3c/sub\u3e Relationship for \u3cem\u3ep\u3c/em\u3e-Hydroquinone Ethers and the Role of Methoxy Group Rotation [PDF]

open access: yes, 2016
Koopmans’ paradigm states that electron loss occurs from HOMO, thus forming the basis for the observed linear relationships between HOMO/IP, HOMO/Eox, and IP/Eox.
Boddeda, Anitha   +3 more
core   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

Crystal Structure and Thermal Studies of Coordination Compounds

open access: yesCrystals, 2020
In recent decades, coordination compounds have been of great interest, thanks to their fascinating structures and functional properties [...]
Agata Bartyzel   +2 more
doaj   +1 more source

Is Captain Kirk a natural blonde? Do X-ray crystallographers dream of electron clouds? Comparing model-based inferences in science with fiction [PDF]

open access: yes, 2018
Scientific models share one central characteristic with fiction: their relation to the physical world is ambiguous. It is often unclear whether an element in a model represents something in the world or presents an artifact of model building.
Barwich, Ann-Sophie
core  

Atomic electron tomography in three and four dimensions [PDF]

open access: yes, 2020
Atomic electron tomography (AET) has become a powerful tool for atomic-scale structural characterization in three and four dimensions. It provides the ability to correlate structures and properties of materials at the single-atom level.
Ercius, P, Miao, J, Yang, Y, Zhou, J
core  

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan   +5 more
wiley   +1 more source

Lectin ligands: New insights into their conformations and their dynamic behavior and the discovery of conformer selection by lectins [PDF]

open access: yes, 1998
The mysteries of the functions of complex glycoconjugates have enthralled scientists over decades. Theoretical considerations have ascribed an enormous capacity to store information to oligosaccharides, In the interplay with lectins sugar-code words of ...
Bovin, N. V.   +11 more
core   +9 more sources

Isolation of kinetically-stabilised diarylchalcogenide radical cations

open access: yesCommunications Chemistry
Chalcogenide radical cations [R2E]•+ (E = S, Se, Te) are commonly short-lived intermediates of fundamental interest. Sulfide radical cations in particular are associated in vivo with oxidative stress and neuropathological processes.
Pascal Komorr   +7 more
doaj   +1 more source

CONCEITOS EM CRISTALOGRAFIA ESTRUTUAL: UMA ABORDAGEM COMPREENSIVA DA LEI DE BRAGG E DO FATOR DE ESTRUTURA [PDF]

open access: yesQuímica Nova
It is not uncommon that as a chemistry course progresses, along with the deepening of the content studied, the tendency of not carefully revisiting the foundations of the concepts covered and deepened also increases. The understanding of the structure of
Rafael P. Machado   +1 more
doaj   +1 more source

Electron Transfer Prompted Ejection of a Tightly Bound K\u3csup\u3e+\u3c/sup\u3e from the Ethereal Cavity of a Hexaarylbenzene-Based Receptor [PDF]

open access: yes, 2007
Synthesis of a pair of rotamers (9u/9s) of a hexaarylbenzene derivative containing six (cofacially arranged) electroactive 2,5-dimethoxytolyl groups is described.
Lindeman, Sergey V.   +2 more
core   +1 more source

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