Results 51 to 60 of about 12,036 (267)

π‐Expanded Fluoranthenes as Chromophores With Tailored Properties

open access: yesHelvetica Chimica Acta, EarlyView.
A series of π‐expanded fluoranthene scaffolds selectively functionalized with electron donors and acceptors were synthesized. The evolution of the structural, optoelectronic, and redox properties in relation to substitution and cyclization was comprehensively studied both in experiment and in theory. The results identify the compounds as highly tunable
Silas C. Eiden   +4 more
wiley   +1 more source

High‐Voltage Cathode Materials for Sodium‐Ion Batteries: Advances and Challenges

open access: yesSmall, EarlyView.
This review explores the role of high‐voltage cathode materials in enhancing the performance of SIBs. It focuses on strategies to improve energy density, rate capacity, and stability, addressing challenges like phase transitions, metal migration, and electrolyte degradation.
Congqi Ren, Yulian Dong, Yong Lei
wiley   +1 more source

Results of GC–MS Analyses of 40 Extracts of Diabetes Devices

open access: yesContact Dermatitis, EarlyView.
Forty acetone extracts of 27 diabetes devices were investigated by gas chromatography–mass spectrometry. Two hundred eighty four individual chemicals were identified. All 40 extracts contained one or more chemicals that were previously identified as allergens in diabetes devices causing allergic Contact Dermatitis.
Emma M. van Oers   +4 more
wiley   +1 more source

Complex organic molecules in the Galactic Centre: the N-bearing family

open access: yes, 2018
We present an unbiased spectral line survey toward the Galactic Centre (GC) quiescent giant molecular cloud (QGMC), G+0.693 using the GBT and IRAM 30$\,$ telescopes. Our study highlights an extremely rich organic inventory of abundant amounts of nitrogen
Aladro, R.   +8 more
core   +1 more source

Herbivore induction of the glucosinolate-myrosinase defense system: major trends, biochemical bases and ecological significance [PDF]

open access: yes, 2009
Like many other plant defense compounds, glucosinolates are present constitutively in plant tissues, but are also induced to higher levels by herbivore attack.
Gershenzon, J., Textor, S.
core   +2 more sources

Methods of determining the quality of water using the functional characteristics of algae [PDF]

open access: yes, 1980
In the study of questions relating to the quality of raw water and the biological produc- tivity of water bodies algal indicators have an important place.
Sirenko, L.A.
core  

Radiolysis of ammonia-containing ices by energetic, heavy and highly charged ions inside dense astrophysical environments [PDF]

open access: yes, 2009
Deeply inside dense molecular clouds and protostellar disks, the interstellar ices are protected from stellar energetic UV photons. However, X-rays and energetic cosmic rays can penetrate inside these regions triggering chemical reactions, molecular ...
Balanzat, E.   +6 more
core   +3 more sources

Kinetic Investigation of Polyurethane Rubber Formation from CO2‐Containing Polyols [PDF]

open access: yes, 2020
A novel CO2 utilization technology allows for the inclusion of CO2 as carbonate units and double bond moieties to give additional functionality in polyether polyols.
Buchner, Georg A.   +5 more
core   +1 more source

Crucial Role of Oxidation for the Prebiotic Peptide Elongation Promoted by Carbonyl Sulfide

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 1, January 12, 2026.
The prebiotic activation of amino acid (AA) into peptides via N‐carboxyanhydride (NCA), promoted by carbonyl sulfide (COS), cannot proceed without an oxidizing step (enabling better leaving groups than sulfur dianion). While being efficient even at mild pH the prebiotic scope of COS promoted activation of AA, it is however limited because side ...
Alexandre Desfoux   +4 more
wiley   +1 more source

Synthesis of Lewis Acid‐Base Adducts Between PCO− and Group 13 Lewis Acids

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 1, January 6, 2026.
Lewis acid–base adducts [Na(18c6)(L)][PCO(EMe3)] (L = THF or 1,4‐dioxane; E = Ga, In) were obtained from the reactions of [Na(18c6)PCO] and trimethyltriels (EMe3 (E = Ga, In) and examined by NMR spectroscopy, IR spectroscopy, elemental analysis, and X‐ray structure analysis.
Kevin Dollberg   +9 more
wiley   +1 more source

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