Results 251 to 260 of about 83,989 (313)

New Pyridobenothiazolone Derivatives Display Nanomolar Pan‐Serotype Anti‐Dengue Virus Activity

ChemMedChem, EarlyView.
A ligand‐based strategy is employed, starting from hit compound 2, to develop the C‐2 modified pyridobenzothiazolone 19 as a pan‐serotype nanomolar DENV‐1‐4 inhibitor. Investigations of the mechanism reveal the peculiar ability to abolish the infectivity of virions in a second infection.
Tommaso Felicetti, Chin Piaw Gwee, Kitti Wing Ki Chan, Giacomo Pepe, Ciro Milite, Pietro Campiglia, Satoru Watanabe, Muhammad Danial Bin Mohd Mazlan, Stefano Sabatini, Serena Massari, Oriana Tabarrini, Gianluca Sbardella, Subhash G. Vasudevan, Giuseppe Manfroni   +13 more
wiley   +1 more source

Elucidating the structures of substituted adamantyl esters and ethers using rotational spectroscopy and computations

ChemPhysChem, Accepted Article.
Adamantane derivatives are promising candidates in the design of new materials with unique properties. In this study, we investigated the molecular structure of a series of adamantyl esters and ethers with an increasing substituent size using broadband rotational spectroscopy.
Nataša Burić, Donatella Loru, Jasna Alić, Marina Šekutor, Melanie Schnell, Pablo Pinacho   +5 more
wiley   +1 more source

Vibrational Partition Functions from Bond Order and Populations Relationships

ChemPhysChem, EarlyView.
A new computational model is presented that predicts vibrational partition functions using bond orders and populations relationships (QBOP). This model demonstrates that thermochemical energy contributions can be reasonably approximated based on well‐conditioned orbital populations without the need for a costly Hessian calculation.
Barbaro Zulueta, John A. Keith
wiley   +1 more source

A Sequential Catalytic Carbonation–Hydrolysis–Diol Dehydrogenation Reaction of Epoxides

ChemPlusChem, EarlyView.
A sequential/cascade carbonation–hydrolysis–diol dehydrogenation reaction of epoxides is catalyzed by <0.05 mol% of a commercially available ionic liquid and platinum on carbon, to make react CO2 and generate H2. The final catalytic system is achieved after studying the individual steps and finding common reaction conditions. These results open the way
Alejandro Lumbreras‐Teijeiro, Judit Oliver‐Meseguer, Antonio Leyva‐Pérez   +2 more
wiley   +1 more source

Photochemical Surface Degradation in Spiropyran Based Films

ChemPhotoChem, EarlyView.
Monitoring of photoswitching surface properties using molecular photochromes can give misleading results due to primary inner filter effects. The surface layer can degrade but then protect deeper layers from damage, leading to misassignment of the origin of light driven changes in surface energy.
Ruben Feringa, Jacopo M. Martinelli, Wesley R. Browne   +2 more
wiley   +1 more source

Environment‐Dependent Ultrafast Photodynamics of Aurone Derivatives for the Photoprotection of Agrochemicals

ChemPhotoChem, EarlyView.
Five derivatised aurones were synthesised via a green approach for potential application as photoprotectants for agrochemicals. Their long‐term and ultrafast photodynamics, in solution and on a wax surface, were investigated through steady state and femtosecond transient electronic absorption spectroscopy techniques, revealing significant differences ...
Michael Hymas, Jack Dalton, Benjamin Rioux, Amandine L. Flourat, Florent Allais, Reza Omidyan, Vasilios G. Stavros   +6 more
wiley   +1 more source

Anthraquinone Sulfonates as Water‐Soluble Photocatalysts: Synthetic Applications and Perspectives

ChemPhotoChem, EarlyView.
The development of photochemistry in water is rapidly advancing, and the demand for water‐soluble photocatalysts is increasing. Accordingly, anthraquinone sulfonates are interesting options for the activation of organic molecules through H‐atom transfer, proton‐coupled electron transfer, or the generation of reactive oxygen species.
Daniel Kolb, Andrey Fedulin, Burkhard König   +2 more
wiley   +1 more source

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Sources of excited cyclohexane in the radiolysis of cyclohexane

The Journal of Physical Chemistry, 1988
Streak camera measurements of the relative yield of the excited state of cyclohexane (CH*) as a function of electron scavenger concentration (perfluoro-n-hexane, CO/sub 2/, and N/sub 2/O) strongly indicate that less than 10% of the CH* is formed by direct excitation.
A.C. Chernovitz, C.D. Johah, M.C. Sauer, B.C. Le Motais   +3 more
openaire   +2 more sources

Phase equilibria of binary clathrate hydrates of nitrogen+cyclopentane/cyclohexane/methyl cyclohexane and ethane+cyclopentane/cyclohexane/methyl cyclohexane

Chemical Engineering Science, 2011
Abstract In this communication, we first report hydrate dissociation conditions for the nitrogen+cyclopentane, cyclohexane or methyl cyclohexane+water and ethane+cyclopentane, cyclohexane or methyl cyclohexane+water systems at various temperatures. The experimental data were generated using an isochoric pressure-search method.
Mohammadi, Amir H., Richon, Dominique
openaire   +4 more sources

Nomenclature of Cyclohexane Bonds

Nature, 1953
IT was shown originally by X-ray and electron diffraction, and has been confirmed by other physical and by chemical means, that the most stable and permanent form of the cyclohexane ring is that particular strainless form which is sometimes likened to a chair or a staircase.
V. Prelog, D. H. R. Barton, O. Hassel, K. S. Pitzer   +3 more
openaire   +4 more sources