Results 111 to 120 of about 21,289 (213)

A Simple Model for the Evaporation of Hydrometeors and Their Isotopes. [PDF]

J Geophys Res Atmos
de Szoeke SP, Sarkar M, Quiñones Meléndez E, Blossey PN, Noone D.   +4 more
europepmc   +1 more source

Mono‐Ethyl‐Phosphonates: Functional Group Masking Strategy to Stabilize and Optimize the Pharmacokinetics of Rare Earth Radiochelates

ChemistryEurope, EarlyView.
Prodrug strategies are used to enhance the pharmacokinetics of small molecule drugs. Here, this approach to rare earth coordination complexes is adopted with applications as diagnostic and therapeutic radiopharmaceuticals: a mono‐ethyl‐phosphonate polyazamacrocyclic chelator for 44Sc and 177Lu reduces blood and bone uptake.
Jennifer N. Whetter, Axia Marlin, Edith K. Amason, Eduardo Aluicio‐Sarduy, Angus J. Koller, Phuong Nguyen Tran, Kaelyn V. Becker, Jonathan W. Engle, Eszter Boros   +8 more
wiley   +1 more source

Pyrazine‐Functionalized Ru(II)‐Complexes as Visible‐Light Activated Photobases

Chemistry – A European Journal, EarlyView.
Visible light excitation leads to the accumulation of electron density in pyrazine‐containing Ru(II) complexes via metal‐to‐ligand charge transfer (MLCT). In aqueous solutions of appropriate pH, excited‐state proton transfer (ESPT) takes place on a timescale of hundreds of ps.
Niklas Klosterhalfen, Nishi Singh, Michael Jäger, Andreas Winter, Phil Köhler, Ulrich S. Schubert, Benjamin Dietzek‐Ivanšić   +6 more
wiley   +1 more source

Altering the Hydrogen Isotopic Composition of the Essential Nutrient Water as a Promising Tool for Therapy: Perspectives and Risks. [PDF]

Int J Mol Sci
Yaglova NV, Obernikhin SS, Timokhina EP, Tsomartova ES, Yaglov VV, Nazimova SV, Ivanova MY, Chereshneva EV, Lomanovskaya TA, Tsomartova DA.   +9 more
europepmc   +1 more source

Photocatalytic Hydrophosphination Using Calcium Precatalysts

Chemistry – A European Journal, EarlyView.
Calcium compounds are competent photocatalysts for hydrophosphination. Returning to the compounds reported by Barrett and Hill, visible light irradiation at ambient temperature activates simple calcium derivatives comparable to thermal catalysis. Ancillary ligands are key to radical versus nonradical reactivity under these conditions.
Moniruzzaman Moniruzzaman, Nai‐Yuan Jheng, Rory Waterman   +2 more
wiley   +1 more source

Lattice-driven gating in a Cu-based zeolitic imidazolate framework for efficient high-temperature hydrogen isotope separation. [PDF]

Nat Commun
Jung M, Park J, Muhammad R, Park T, Jung SY, Yi J, Jung C, Ollivier J, Ramirez-Cuesta AJ, Park JT, Kim J, Russina M, Oh H.   +12 more
europepmc   +1 more source

Fused Nitrogen Bridgehead N,O‐Acetals as Versatile Scaffolds: Synthetic Strategies, Mechanism and Applications

Chemistry – A European Journal, EarlyView.
Fused nitrogen‐bridgehead N,O‐acetals receive specific emphasis as pivotal scaffolds due to their significant role in the bioactivity of medicinally relevant molecules. Significant approaches have been reported on their role as key synthetic building blocks/motifs in the construction of complex organic molecules and their utility as chiral auxiliaries ...
Alexis D. Kouvelas, Michael G. Kallitsakis, Ioannis N. Lykakis   +2 more
wiley   +1 more source

Dinitrogen Splitting without Barrier or Visible Light‐Driven: Reactions of Vanadium Trimers and Dimers with Dinitrogen

Chemistry – A European Journal, EarlyView.
Striking differences between the reactivity of vanadium atoms, dimers, and trimer clusters were revealed by matrix isolation experiments. Vanadium atoms only form weakly bound N2 complexes, but the V3 cluster splits the NN triple bond to give a V3N2 cluster.
Olaf Hübner, Hans‐Jörg Himmel
wiley   +1 more source

Lithium Isotope Separation Using the 15-Crown-5 Ether System and Laboratory-Made Membranes. [PDF]

Materials (Basel)
Iordache AM, Nasture AM, Zgavarogea R, Andrei R, Mandoc R, Feizula E, Santos R, Nechita C.   +7 more
europepmc   +1 more source

From C─H Bond Insertion to Hydrogen Atom Transfer: Tuning the Reaction Mechanisms of Methane Activation by the Oxidation of Ta2+

Chemistry – A European Journal, EarlyView.
In a combined experimental and theoretical study, it is observed that the continued oxidation from Ta2+ to Ta2Ox+ (with x = 1 – 6) changes the reactivity with methane from a typical metallic to a typical oxidic behavior. While the bridging motifs in Ta2O2+ enable the dehydrogenation of CH4, the spin density on oxygen atoms in Ta2O5+ facilitates a HAT ...
Flora Siegele, Jan F. Eckhard, Tsugunosuke Masubuchi, George Goddard, Detlef Schooss, Dmitry I. Sharapa, Felix Studt, Martin Tschurl, Ueli Heiz   +8 more
wiley   +1 more source