Results 151 to 160 of about 291,001 (382)

Pyridine Into Pyrrole Transformation Induced Within the Confinement of the Macrocycle

open access: yesAngewandte Chemie, EarlyView.
This work demonstrates the nontrivial reactivity of pyridine incorporated into a porphyrin framework. The most significant achievement is the contraction of the six‐membered ring to a pyrrole ring, which is a phenomenon of great interest to researchers in this field.
Paulina Krzyszowska   +5 more
wiley   +2 more sources

A Dual‐Piezoelectric Metal–Organic Cage/COF Z‐Scheme Heterojunction for Solar‐Mechanical Water Splitting

open access: yesAdvanced Science, EarlyView.
A dual‐piezoelectric Z‐scheme heterojunction is constructed by integrating a piezoelectric metal–organic cage (MOC‐FA3) with a β‐ketoenamine‐linked covalent organic framework (S‐COF). This design enables efficient solar‐mechanical energy conversion, achieving remarkable piezo‐photocatalytic pure water splitting for simultaneous H2 and H2O2 production ...
Xin‐Ao Li   +9 more
wiley   +1 more source

Reprogrammable Hydroplastic Latex Films and Water‐Driven Phase Separation

open access: yesAdvanced Science, EarlyView.
Hydroplastic latex films with discontinuous hydrophobic phases surrounded by continuous hydrophilic phases, are prepared. Upon immersion in water, the latex films have water‐driven phase separation. ABSTRACT Thermoplastics are a class of plastic polymers that can be remolded repeatedly by heating and cooling.
Yuwei Du, Hanying Zhao
wiley   +1 more source

Verbesserte Auflösung in der ESR‐Spektroskopie unter Verwendung von para‐Wasserstoff‐Matrizen

open access: yesAngewandte Chemie, EarlyView.
Wir demonstrieren die vorteilhaften Eigenschaften von festen para‐Wasserstoff (p‐H2)‐Matrizen für die Elektronenspinresonanz (ESR) Spektroskopie, indem wir das 2,2,6,6‐Tetramethylpiperidinyloxyl (TEMPO)‐Radikal und ein in situ erzeugtes P‐zentriertes Monoradikal untersuchen. Die spektrale Auflösung des P‐zentrierten Radikals in p‐H2 ist im Vergleich zu
Adrián Portela‐González   +2 more
wiley   +1 more source

Intermolekulare, Enantioselektive Nickel‐Katalysierte Arylierung von Nicht‐Aktivierten C(sp3)–H Bindungen

open access: yesAngewandte Chemie, EarlyView.
Ni: neue Lösung für asymmetrische C(sp3)‐H‐Aktivierung. Die stereoselektive Synthese vollständig kohlenstoffsubstituierter quartärer Stereozentren gelingt durch eine enantioselektive C(sp3)‐H‐Arylierung unter Verwendung eines Ni‐Katalysators auf der Basis eines BINOL‐Derivaten.
Erwan Brunard   +4 more
wiley   +1 more source

Deuterium and Oxygen toward Feige 110: Results from the FUSE Mission [PDF]

open access: bronze, 2002
S. D. Friedman   +13 more
openalex   +1 more source

Enhanced Resolution in EPR Spectroscopy Using para‐Hydrogen Matrices

open access: yesAngewandte Chemie International Edition, EarlyView.
We demonstrate the advantageous properties of solid para‐hydrogen (p‐H2) matrices for electron paramagnetic resonance (EPR) spectroscopy by investigating the 2,2,6,6‐tetramethylpiperidinyloxyl (TEMPO) radical and an in situ generated P‐centered mono‐radical.
Adrián Portela‐González   +2 more
wiley   +1 more source

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