Results 111 to 120 of about 64,520 (291)

A Negatively Curved Pyrene-Fused Azaacene. [PDF]

Angew Chem Int Ed Engl
A pyrene‐fused azaacene derivative is reported in which steric overcrowding caused by eight phenyl substituents induces bending of the aromatic framework rather than twisting. ABSTRACT Non‐planar aromatic hydrocarbons display distorted π‐frameworks that give rise to unique optoelectronic properties.
Carini M, Martín-Arroyo M, Melle-Franco M, Mateo-Alonso A.   +3 more
europepmc   +3 more sources

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

The Metabolism of Pyrene [PDF]

British Journal of Cancer, 1957
openaire   +2 more sources

Pyrene-modified quartz crystal microbalance for the detection of polynitroaromatic compounds

, 2011
The synthesis of a dithiol-functionalized pyrene derivative is reported, together with studies of interactions between this receptor (and other related pyrenes) and nitroaro- matic compounds (NACs), in both solution and in the solid state.
Wayne Hayes (378011), Howard M Colquhoun (16261292), Haitham Etman (2176488), Christine J Cardin (16261289), Joanne M Elliott (16263701), Claire A Murray (16261286), Rajendran Vaiyapuri (488415), Roger A Bennett (16263974), Barnaby Greenland (4468213)   +8 more
core  

Pyrene and Biochar (Raman Spectroscopy) [PDF]

Pyrene is a polycyclic aromatic hydrocarbon (PAH) organic compound. Here we consider its Raman spectroscopy, and how it is revealing, when used to create nanograins (Gavilan et al., 2022), a spectrum which is like that we can observe when biochar is ...
Sparavigna, Amelia Carolina, Amelia Carolina, Sparavigna   +1 more
core   +1 more source

Alkene Hydrogenation by a Cationic, Nine‐Coordinate Molybdenum(VI) Pentahydride Catalyst

Chemistry – A European Journal, EarlyView.
While late 3d metals dominate efforts to replace precious metals in homogeneous hydrogenation, molybdenum has remained largely ignored. This work reveals that a nine‐coordinate pentahydrido molybdenum complex can hydrogenate a broad range of alkenes efficiently, demonstrating that early‐metal polyhydrides can serve as genuine catalysts rather than mere
Arno Estival, Michel Sigrist, Nicolas Queyriaux, Jorge J. Cabrera‐Trujillo, Nina Durvin, Marie‐Christine Boegli, Laure Vendier, Mary Grellier, Karinne Miqueu, Antoine Simonneau   +9 more
wiley   +1 more source

Evaluation the Capability of Isolated Bacteria from Stabilized Compost for Bioremediation of Pyrene and Phenanthrene from Contaminated Soil with Municipal Solid Waste Leachate

Journal of Environmental Health and Sustainable Development, 2019
Introduction: Pyrene and phenanthrene are polycyclic aromatic hydrocarbons (PAHs) are priority pollutants. The aim of this study was to investigate the ability of isolated bacteria from stabilized compost‌ for biodegradation of pyrene and phenanthrene ...
Masoume Javaheri, Mehdi Mokhtati, Mohammad Reza Samaei, Samane Sedighi Khavidak, Farimah Shamsi, Parvin Zamani, Ali Asghar Ebrahimi   +6 more
doaj  

Mechanically Activated Luminescence in Polyurethanes Incorporating Calixarene Mechanophores. [PDF]

Angew Chem Int Ed Engl
The conformational flexibility of a calix[4]arene is exploited to obtain a reversible mechanoluminophore featuring a pyrene excimer couple at the upper rim. Stretching a linear polyurethane incorporating such mechanophore results in luminescence color change from yellow–green to blue, consistent with a force‐induced conformational motion of the ...
Visieri L, Casnati A, Baldini L, Berrocal JA.   +3 more
europepmc   +2 more sources

Pyrene-Containing ortho-Oligo(phenylene)ethynylene Foldamer as a Ratiometric Probe Based on Circularly Polarized Luminescence

, 2018
In this manuscript, we report the first synthesis of an organic monomolecular emitter, which behaves as a circularly polarized luminescence (CPL)-based ratiometric probe.
Belen Vaz (5052344), Jose Justicia (5052347), Giovanna Longhi (1587886), María Ribagorda (1883488), Delia Miguel (1491904), Sara P. Morcillo (1493431), Ángel Orte (5052341), Juan M. Cuerva (1491919), Luis Álvarez de Cienfuegos (1493437), Araceli G. Campaña (1843282), Sergio Abbate (1587889), Pablo Reiné (5052350)   +11 more
core   +1 more source

Helical Folding of Abiotic Chiral Poly(phosphodiester)s

Chemistry – A European Journal, EarlyView.
Design and structural analysis of a new class of phosphodiester foldamers are presented. These oligomers that fold into single helical architecture showed length and temperature stability dependence comparable to DNA duplexes. ABSTRACT Functions of biomolecules are intimately linked to their structures which result from the folding of a linear sequence
Ranajit Barman, Brice Kauffmann, Jean‐François Lutz, Victor Maurizot   +3 more
wiley   +1 more source