Results 121 to 130 of about 732,397 (247)

Fluorescent Imidazo[1,5-a]pyridinium Salt for a Potential Cancer Therapy Agent. [PDF]

open access: yesACS Med Chem Lett, 2019
Yagishita F   +7 more
europepmc   +1 more source

Structure and Spectroscopic Characterisation of Phenanthroline‐Based Iodobismuthate(III) Complexes Utilised for Raw Acoustic Signal Classification

open access: yesAdvanced Intelligent Discovery, Volume 2, Issue 5, October 2026.
Memristors based on trimethylsulfonium (phenanthroline)tetraiodobismuthate have been utilised as a nonlinear node in a delayed feedback reservoir. This system allowed an efficient classification of acoustic signals, namely differentiation of vocalisation of the brushtail possum (Trichosurus vulpecula).
Ewelina Cechosz   +4 more
wiley   +1 more source

Ionic Liquid Electrolytes for Extreme Temperature Conditions: Challenges and Perspective

open access: yesAngewandte Chemie, Volume 138, Issue 40, 28 September 2026.
Ionic liquids (ILs) have gained great attention as safe electrolyte components in recent years. This review elucidates the temperature effects on IL‐based electrolytes from molecular configurations, physicochemical properties, and interfacial chemistry, raises the challenges and design strategies operating at low‐ and HT, providing valuable guidance ...
En Xie   +11 more
wiley   +2 more sources

Sulfur‐Bridged Cationic and Neutral [6]Helicenes: Chiral Trityls With Property and Stability Twists

open access: yesChemistryEurope, Volume 4, Issue 10, October 2026.
Replacing oxygen or nitrogen bridges with sulfur reshapes cationic [6]helicenes and simultaneously tunes their reactivity, photophysics, and configurational dynamics. Sulfur bridging increases helical curvature and electrophilicity, narrows electronic gaps to promote redshifted absorption and emission with larger Stokes shifts, yet unexpectedly lowers ...
Aurélien Chignac   +5 more
wiley   +1 more source

Salt Lake County Library System Historical Scrapbook, 1987-1988

open access: yes, 1987
Salt Lake County Library System Historical ...
Salt Lake County (Utah). Library System
core  

Phosphine Oxide Containing Poly(pyridinium salt)s as Fire Retardant Materials. [PDF]

open access: yesPolymers (Basel), 2019
Alam MM   +6 more
europepmc   +1 more source

Stereoretentive Nucleophilic Aromatic Substitution Accesses Atropisomeric 4‐Amino‐N‐Arylquinolinium Salts

open access: yesChemistry – A European Journal, Volume 32, Issue 37, 1 October 2026.
Quinolin‐4‐ones were converted to chloroquinolinium salts, allowing formation of axially chiral aminoquinolinium salts via an enantioretentive SNAr reaction with a variety of amine nucleophiles. The salts have a high rotational barrier, with a racemization half‐life of ∼1000s of years.
Darren Holmes   +5 more
wiley   +1 more source

Nitrooxylation in Organic Synthesis: From Classical Nitrate Ester Formation to Modern Catalytic Strategies

open access: yesChemistry – A European Journal, Volume 32, Issue 37, 1 October 2026.
Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley   +1 more source

Salt Lake County Library System Historical Scrapbook, 1975-1981

open access: yes, 1975
Salt Lake County Library System Historical ...
Salt Lake County (Utah). Library System
core  

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