Results 221 to 230 of about 40,309 (296)

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

Chemistry – A European Journal, EarlyView.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis, Kyriakos D. Nikopoulos, Ioannis N. Lykakis   +2 more
wiley   +1 more source

Oxalic acid-mediated phosphorus availability regulates the variations of karst soil organic carbon fractions under drought. [PDF]

Front Plant Sci
Ye D, Wu K, Liang Y, Zhang S, Wu X, Deng L, Pan F, Tu C.   +7 more
europepmc   +1 more source

Si─Si Bonding in an Unsupported N‐Heterocyclic Silylene Dimer Stabilized by an Iminophosphorane‐Based Scorpionate Ligand Versus Head‐to‐Tail Coordination in the Sn and Pb Tetrylenes

Chemistry – A European Journal, EarlyView.
A new iminophosphorane‐based scorpionate ligand enabled the characterization of a head‐to‐head silylene dimer with unsupported Si─Si bonding, whereas the tetrylene species of Sn and Pb afforded head‐to‐tail coordination polymers in the solid state. ABSTRACT N,N‐chelating ligands disfavor element–element bonding in heavier alkene analogs of group 13 and
Huanhuan Dong, Rochelle Ferns, Luke W. Giles, Lea Fohlmeister, Connor Bourne, Samuel R. Lawrence, Aidan P. McKay, Alexandra M. Z. Slawin, David B. Cordes, Tanja van Mourik, Andreas Stasch   +10 more
wiley   +1 more source

Effect of Nutrient Enrichment on Alpha and Beta Diversity of Macroinvertebrate Community in a Boreal River of Northern China. [PDF]

Biology (Basel)
Sun X, Guo Y, Wang X, Li W, Li C, Lou Y, Cao S, Wang Z, Li Z, Liu G.   +9 more
europepmc   +1 more source

Dinuclear Copper(I) Complexes Featuring Metal–Metal Interactions and a μ2‐Bridging Phosphane With Additional Olefinic Binding Sites

Chemistry – A European Journal, EarlyView.
A Cu2P triangle captured in a tetrapodal phosphane tris(olefin) ligand, where all binding forces are weak apart from the Cu─P interaction. ABSTRACT The molecule Ptrop3 contains in each trop unit (trop = dibenzo[a,d]cyclohepten‐5‐yl) a rigid central seven‐membered ring with an olefinic binding site making Ptrop3 potentially a tetradentate ligand ...
Zhongshu Li, Daniel Himmelbauer, Jan Oswald, Michael Wörle, René Verel, Zoltán Benkő, Hansjörg Grützmacher   +6 more
wiley   +1 more source

Vegetation Mosaic Effects on Soil Microbial Community Structure and Enzyme Functioning in Relation to Nutrient Heterogeneity in a Mountainous Ecotone. [PDF]

Plants (Basel)
Lei G, Yang Y, Li W, Chen T, Qi L.
europepmc   +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

Paddy ponding water quality responses to land use intensity in flooded rice systems in Uruguay. [PDF]

J Environ Qual
Cantou G, González-Barrios P, Furtado I, Roel A.   +3 more
europepmc   +1 more source

Azidophosphonamido Rhodium(I) and Iridium(I) Complexes: Synthesis, Properties, and Linkage Isomerism

Chemistry – A European Journal, EarlyView.
A family of azidophosphonamido ligands and their corresponding rhodium(I) and iridium(I) complexes were synthesized. The rich reaction chemistry of these species revealed unusual linkage isomerization processes and bonding motifs. M = Rh, Ir; Mes = 2,4,6‐Me3C6H2. ABSTRACT A series of azidophosphonamido rhodium(I) and iridium(I) complexes ([iPr2P(N3R)NR]
Emily L. Trew, Daisy E. Cruz‐Milette, Douglas Turnbull, Paul G. Hayes   +3 more
wiley   +1 more source

Germylium Catalyzed Dehydrofluorination Reactions of Fluorinated Alkanes

Chemistry – A European Journal, EarlyView.
Dehydrofluorination reactions of fluorinated alkanes catalyzed by germylium ions are reported. Computational studies of the mechanism revealed an E2 type mechanism involving a germane as a base to facilitate olefin formation in competition with an SN2 mechanism for hydrodefluorination.
Julie Borel, Morten Lehmann, Martin Kaupp, Thomas Braun   +3 more
wiley   +1 more source