Results 301 to 310 of about 54,813 (368)

Stable Mg2+ Dication Weakly Stabilized/Coordinated in Solution: Synthesis, Structure, Reactivity, and Use in Catalysis

Angewandte Chemie, EarlyView.
Stable Mg2+ dication stabilized only by weakly coordinating carborates was first prepared and structurally characterized as a soluble salt in organic solvents. Combined experimental and theoretical data provided valuable insights into its behavior/reactivity in solution.
Xuejuan Xu, Alain Chaumont, Christophe Gourlaouen, Satawat Tongdee, Sandip Munshi, Béatrice Jacques, Rudolf Wehmschulte, Samuel Dagorne   +7 more
wiley   +1 more source

Mobility and community at Mesolithic Lake Onega, Karelia, north-west Russia: insights from strontium isotope analysis. [PDF]

Archaeol Anthropol Sci
Eckelmann R, Arppe L, Tarasov A, Pospieszny Ł, Ackerman L, Heyd V, Gerasimov D, Moiseyev V, Fairbanks V, Hyland C, Mannermaa K.   +10 more
europepmc   +1 more source

Asymmetric Intramolecular α‐Arylation of Polar Amino Acids Bearing β‐Leaving Groups

Angewandte Chemie, EarlyView.
Use of enolate chemistry to functionalise amino acids with β‐heteroatom side‐chains (serine, cysteine, threonine, etc.) is hampered by β‐elimination. We show that α‐arylation can be achieved by incorporating the side chain into a saturated heterocycle, making the unwanted elimination a disfavoured 5‐endo‐trig reaction.
Ömer Taspinar, Daniel J. Leonard, Nathan Picois, Cornelia Göcke, Matej Žabka, Hazel A. Sparkes, Jonathan Clayden   +6 more
wiley   +1 more source

Spatiotemporal changes in riverine input into the Eocene North Sea revealed by strontium isotope and barium analysis of bivalve shells. [PDF]

Sci Rep
Kniest JF, Evans D, Gerdes A, Cantine M, Todd JA, Sigwart JD, Vellekoop J, Müller W, Voigt S, Raddatz J.   +9 more
europepmc   +1 more source

Shaping of a Reactive Manganese Catalyst Enables Access to Polyfunctionalized Cyclohexanes via Enantioselective C(sp3)─H Bond Oxidation of 1,3‐meso Diethers

Angewandte Chemie, EarlyView.
Structural shaping of a highly reactive chiral Mn‐oxo species translates into exceptionally enantioselective C─H oxidation catalyst of cyclohexyl 1,3‐meso diethers (up to >99% ee) leading to polyfunctionalized cyclohexanes. Abstract Chiral polyoxygenated cyclohexanes are valuable constituents of biologically relevant products.
Andrea Palone, Arnau Call, Aleria Garcia‐Roca, Josep M. Luis, Matthew S. Sigman, Massimo Bietti, Cristina Nevado, Miquel Costas   +7 more
wiley   +1 more source

Ca(BF₄)₂·xH₂O redefined from powder diffraction as hydrogen-bonded Ca(H₂O)₄(BF₄)₂ ribbons. [PDF]

Acta Crystallogr C Struct Chem
Le Bail A.
europepmc   +1 more source

Structural Origin of Spin‐Orbit Splitting of 1P Orbitals of Icosahedral Au13 Superatom Protected by Ligands

Angewandte Chemie, EarlyView.
The spin‐orbit (SO) splitting of the superatomic 1P orbitals in thiolate‐protected Au13 superatoms were investigated. Cryogenic anion photoelectron spectroscopy and fully relativistic calculation including SO coupling revealed the 1P orbitals of the Au13 and Au@Ag12 superatomic cores undergo SO splitting, while not in the Ag13 core.
Shun Ito, Kiichirou Koyasu, Tatsuya Tsukuda   +2 more
wiley   +1 more source

Estuarine dispersal of an invasive Holarctic predator (Esox lucius) confirmed in North America. [PDF]

PLoS One
Wooller MJ, Bradley P, Spaleta KJ, Massengill RL, Dunker K, Westley PAH.   +5 more
europepmc   +1 more source

Au147(SPh)30(PPh3)12: A Geometrically Closed, but Electronically Open Triple‐Shell Icosahedral Gold Cluster and its Geometrically Open Counterpart

Angewandte Chemie International Edition, EarlyView.
The first triple‐shell icosahedral metal cluster, Au147(SPh)30(PPh3)12, is stabilized by phosphines and thiolates but does not show stable motifs. This cluster fills the gap between single‐shell clusters and nanoparticles in the form of an icosahedron.
Markus Strienz, Andrei Poddelskii, Bridget K. Moll, Claudio Schrenk, Phillip S. Thomas, Andre Z. Clayborne, Andreas Schnepf   +6 more
wiley   +1 more source

Carbonate mineral precipitation induced by microorganisms enriched from the cave water and biofilm in a lime-decorated lava tube. [PDF]

Sci Rep
Kim Y, Kang SM, Jo KN, Roh Y.
europepmc   +1 more source