Results 171 to 180 of about 35,227 (206)

β‐Ketonitrile‐Modified Prodan Derivatives as Large‐Stokes‐Shift Solvatochromic Fluorophores With Enhanced Brightness and Ratiometric Thermometric Response

open access: yesChemistry – A European Journal, EarlyView.
We report a systematic study of β‐ketonitrile–modified Prodan‐type solvatochromic fluorophores. The β‐ketonitrile substitution induces marked bathochromic shifts in absorption and emission and significantly enhances fluorescence quantum yields in nonpolar solvents.
Hiroaki Asakawa   +3 more
wiley   +1 more source

[Therapeutic indications in lawsuits seeking medical Cannabis in Brazil: a cross-sectional study in light of scientific evidence]. [PDF]

open access: yesCad Saude Publica
Pinto CDBS   +5 more
europepmc   +1 more source

Reduction Process of Pt(IV) Complexes With Axial Acetato Ligands by Ascorbic Acid; Comparison of Experimental and Computational Tools

open access: yesChemistry – A European Journal, EarlyView.
Comparison of experimental and calculated rate constants for reduction of selected Pt(IV) complexes by ascorbic acid (AA) in water solution at pH = 7. ABSTRACT In the present work, the reduction mechanism of several Pt(IV) complexes bearing two axial acetato ligands by ascorbic acid (AA) was investigated.
Ondřej Tichý   +3 more
wiley   +1 more source

Foldamers With Two Distinct Helical Motifs Controlled by Solvent

open access: yesChemistry – A European Journal, EarlyView.
Alternating o‐phenylene and 2,3‐pyrazinylene oligomers were synthesized and their conformational behavior studied by NMR spectroscopy, x‐ray crystallography, and DFT calculations. They fold into well‐defined helices, but, remarkably, the folding motif depends on solvent: a compact helix in chloroform, but a much longer extended helix in acetone ...
Yinhui Liao   +6 more
wiley   +1 more source

Design of Solar Energy Harvesting Reactor From 2D to 3D Structures for Solar Thermal Conversion

open access: yesCarbon Innovation, EarlyView.
ABSTRACT Solar energy utilisation is pivotal for advancing sustainable and renewable energy solutions, yet the rational design of high‐efficiency photothermal conversion devices remains a critical challenge. This paper systematically examines the evolution of photothermal reactor architectures from two‐dimensional (2D) to 3D structures, emphasising ...
Haozhe Zhuang   +8 more
wiley   +1 more source

Transition Metal Compounds as Thermochromic Materials: Classification, Properties, Limitations, and Applications

open access: yesEcoEnergy, EarlyView.
This review systematically examines how different transition metal compounds—such as binary and multinary metal oxides, halides, sulfides, and salts—exhibit thermochromism based on the d‐electron configurations of their transition metal cations. It focuses on three main mechanisms of thermochromism: phase transition, charge transfer, and bandgap change.
Jie Wang   +5 more
wiley   +1 more source

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