Results 91 to 100 of about 2,056,277 (235)
Benzochalcogenodiazoles, Synthesis, and Applications in Medicinal Chemistry and Photomedicine
European Journal of Organic Chemistry, EarlyView.Benzochalcogenodiazoles (BXD) including benzoxadiazoles, benzothiadiazoles, and benzoselenadiazoles are initially mainly designed for optoelectronic materials as electron‐deficient cores. Nevertheless, they are now extending their application to biology.
Jean‐Elie Zheng +2 more
wiley +1 more source
The chemical bond as an emergent phenomenon
, 2017 We first argue that the covalent bond and the various closed-shell interactions can be thought of as symmetry broken versions of one and the same interaction, viz., the multi-center bond.
Golden, Jon C. +2 more
core +1 more source
Functional polymer materials containing heavy group‐14 elements focusing on germanium and tin
Smart Molecules, EarlyView.The synthesis, functions, and applications of the polymers containing heavy group 14 elements focusing on germanium and tin are outlined. Owing to their large atomic radii and weak binding energies, the polymers show unique properties: chromism, luminescence, carrier mobility, and reactivity to produce radials and higher coordinated states.
Masayuki Gon, Kazuo Tanaka
wiley +1 more source
Sulfonium Salts as Leaving Groups for Aromatic Labelling of Drug-like Small Molecules with Fluorine-18. [PDF]
Positron emission tomography (PET) is unique in that it allows quantification of biochemical processes in vivo, but difficulties with preparing suitably labelled radiotracers limit its scientific and diagnostic applications.
Cybulska, K +6 more
core
Atomic Coordination, Chemical Bonding, and Electronic State of Praseodymium in Pr2Si7
Zeitschrift für anorganische und allgemeine Chemie, EarlyView.Pr2Si7 is obtained by high‐pressure, high‐temperature synthesis. The topological coordination numbers underline the significance of the silicon partial structure. The homoatomic connectivity within the polyanionic framework in combination with the formation of lone pairs clearly indicates a hypervalent bonding situation for silicon.
Ulrich Schwarz +5 more
wiley +1 more source
OH-Radical Oxidation of Lung Surfactant Protein B on Aqueous Surfaces [PDF]
, 2018 Air pollutants generate reactive oxygen species on lung surfaces. Here we report how hydroxyl radicals (·OH) injected on the surface of water react with SP-B_(1–25), a 25-residue polypeptide surrogate of human lung surfactant protein B.
Colussi, Agustín J., Enami, Shinichi
core +1 more source
Experimental realization of catalytic CH_4 hydroxylation predicted for an iridium NNC pincer complex, demonstrating thermal, protic, and oxidant stability [PDF]
, 2009 A discrete, air, protic, and thermally stable (NNC)Ir(III) pincer complex was synthesized that catalytically activates the CH bond of methane in trifluoroacetic acid; functionalization using NaIO_4 and KIO_3 gives the oxy ...
Ess, Daniel H. +6 more
core +1 more source
A generalized valence bond model for the quantum mechanics of bonding in sulfur compounds, a new view of hypervalency [PDF]
arXivA model for the bonding of hypervalent molecules containing sulfur is presented using generalized valence bond wavefunctions. To delineate the model from more commonly used DFT and delocalized wavefunctions, we present detailed comparisons to these other methods. The result is a new concept of local transferable bonding in hypervalent molecules.
arxiv
Chemistry – A European Journal, Volume 31, Issue 30, May 27, 2025.The total syntheses of (+)‐ and (−)‐myrioneurinol are described. This was achieved through two key steps based on a Prins‐type alkenylation of activated phenols to construct the central cycle of this natural substance, and a late‐stage “resolutive” Barton Mc‐Combie reaction which allowed the separation as well as the deoxygenation of both enantiomers ...
Adrien Denizet +4 more
wiley +1 more source
On the molecules of numerical semigroups, Puiseux monoids, and Puiseux algebras [PDF]
Numerical Semigroups (Editors: V. Barucci, S. T. Chapman, M.
D'Anna, and R. Froberg), Springer INdAM Series, Vol. 40, Switzerland, 2020, 2017 A molecule is a nonzero non-unit element of an integral domain (resp., commutative cancellative monoid) having a unique factorization into irreducibles (resp., atoms). Here we study the molecules of Puiseux monoids as well as the molecules of their corresponding semigroup algebras, which we call Puiseux algebras.
arxiv