Results 151 to 160 of about 3,653 (216)

From Cages to Sheets: Computational Elucidation of Methylaluminoxane Structure and Reactivity

open access: yesChemPlusChem, Volume 91, Issue 8, August 2026.
Methylaluminoxane (MAO), the dominant cocatalyst in metallocene‐based olefin polymerization, has resisted structural characterization for decades. This review traces the computational journey from early cage and nanotube proposals to the identification of two‐dimensional aluminoxane sheets as the thermodynamically preferred motif, and how this ...
Mikko Linnolahti   +2 more
wiley   +1 more source

Inorganic–Organic Hybrid Frameworks Constructed From Keggin‐Type Polyoxotungstates and Bolaamphiphiles

open access: yesCrystal Research and Technology, Volume 61, Issue 8, August 2026.
Inorganic‐organic hybrid crystals are successfully synthesized with the use of Keggin‐type polyoxotungstate and bolaamphiphiles derived from primary diamines. Three‐dimensional anionic frameworks consisting of polyoxotungstates have been constructed in most cases. As for the dodecatungstophosphate hybrid crystals, the X‐ray‐induced chromic property has
Keita Tomimatsu   +7 more
wiley   +1 more source

CO2‐Derived Architected Carbons for Sustainable Energy Conversion and Storage

open access: yesEcoMat, Volume 8, Issue 8, August 2026.
CO2‐derived carbon architectures are systematically engineered via thermochemical, electrochemical, and hybrid pathways to tailor electronic structure, interfacial charge transfer, and catalytic functionality. These materials demonstrate versatile performance across electrocatalysis and energy storage, establishing a coherent framework that links ...
Mohd Ubaidullah   +7 more
wiley   +1 more source

Large‐Scale Structural Dynamics in the Tail Fiber Modulate the Infective Transition of the T7 Bacteriophage

open access: yesSmall, Volume 22, Issue 46, 18 August 2026.
During host recognition, the fibers of T7 bacteriophages transition from a capsid bound state to an extended conformation, which requires some level of fiber flexibility. By using high‐speed atomic force microscopy, we show that the fibers have an internal molecular hinge and a torsionally compliant coiled‐coil region.
Luca Elizabet Kosik   +16 more
wiley   +1 more source

Physical interpretation of Stephens' phenomenological parameters for anisotropic microstrain broadening in cubic systems

open access: yesJournal of Applied Crystallography, Volume 59, Issue 4, Page 1121-1128, August 2026.
This study emphasizes the physical interpretation of Stephens' phenomenological parameters with respect to the nature of dislocations in cubic symmetry, validated through illustrative examples based on modified Williamson–Hall plot analysis.Both the Stephens phenomenological model and the modified Williamson–Hall (mWH) plot analysis address the ...
Ashok Bhakar   +3 more
wiley   +1 more source

Shannon sampling based approach for the structural solution of nano‐objects by laboratory and synchrotron SAXS data

open access: yesJournal of Applied Crystallography, Volume 59, Issue 4, Page 1170-1183, August 2026.
We present a model‐independent approach based on the Shannon sampling theorem to retrieve key structural parameters of proteins and core–shell micelles directly from small‐angle X‐ray scattering (SAXS) profiles. By bypassing the pair distribution function, the method overcomes q‐truncation artifacts and provides reliable mass, size and aggregation ...
Liberato De Caro   +7 more
wiley   +1 more source

Microsecond X‐ray reflectometry

open access: yesJournal of Applied Crystallography, Volume 59, Issue 4, Page 1112-1120, August 2026.
X‐ray reflectometry is accelerated to 213 µs net exposure time using galvanometer scanning, which enables unprecedented temporal resolution for studying dynamic thin‐film processes.We accelerate synchrotron X‐ray reflectometry (XRR) by more than an order of magnitude and demonstrate the acquisition of full reflectivity curves within 213 µs over a qz ...
Michael Haberl   +6 more
wiley   +1 more source

X‐ray‐induced hydride formation in palladium nanowires in a gaseous hydrogen environment

open access: yesJournal of Applied Crystallography, Volume 59, Issue 4, Page 1005-1012, August 2026.
Powder diffraction is used to reveal X‐ray‐induced hydride formation in palladium nanowires in a gaseous hydrogen environment.Palladium hydrides are promising systems for hydrogen sensors and hydrogen storage, making the study of hydride formation in nanoparticles highly relevant. Lately, such studies have often been performed in situ or operando using
Hanna Sjö   +6 more
wiley   +1 more source

Quantifying resolution in pink‐beam dark‐field X‐ray microscopy: experiments and simulations

open access: yesJournal of Applied Crystallography, Volume 59, Issue 4, Page 1139-1152, August 2026.
A quantitative comparison between pink‐beam and monochromatic dark‐field X‐ray microscopy (DFXM) shows that pink‐beam DFXM offers up to two orders of magnitude higher flux and improved signal‐to‐noise ratio for time‐resolved imaging, at the expense of an approximately tenfold loss in angular resolution.
M. La Bella   +6 more
wiley   +1 more source

Convergent‐beam X‐ray crystallography

open access: yesJournal of Applied Crystallography, Volume 59, Issue 4, Page 1200-1218, August 2026.
Molecular crystal diffraction with a highly focused X‐ray beam decouples crystal morphology and molecular structure by measuring magnified topographs from every reflection.Molecular and polymeric crystals show a wide range of functional properties that arise from the interplay between the atomic‐scale structure of their constituent molecules and the ...
Chufeng Li   +21 more
wiley   +1 more source

Home - About - Disclaimer - Privacy