Results 181 to 190 of about 470,172 (244)
Analysis &Sensing, EarlyView.Electrospray ionization mass spectrometry (ESI‐MS) combined with thermodynamic modeling provides the first direct characterization of radium speciation in synthetic gastrointestinal biofluids. Free Ra2+ ions predominate with minimal protein binding and negligible EDTA complexation. Crown ethers enable effective Ra complexation.
Linus Holtmann +5 more
wiley +1 more source
Chimera X Interface to Enhance Understanding in Biochemistry and Immunology
Biochemistry and Molecular Biology Education, EarlyView.ABSTRACT Proteins are essential in biological systems, acting in transport, catalysis, and immune defense processes. However, these biomolecules' structural and functional complexity makes teaching and understanding these topics challenging. To address this difficulty, this study aimed to develop tutorials that facilitate learning and teaching about ...
Dalpiaz Giovana +4 more
wiley +1 more source
ChemistryEurope, EarlyView.Reacting Bis2GaBr (Bis = CH(SiMe3)2) with Bis2AlH selectively yields Bis2GaH, a monomeric hydride in solution, characterized by diffusion ordered spectroscopy NMR, infrared spectroscopy and indirectly via hydrogallation. A one‐pot route enables frustrated Lewis pairs Bis2EOPtBu2 (E = Al, Ga), with the gallium analog splitting H2 and showing a dynamic ...
Julian Buth +7 more
wiley +1 more source
The Challenging P‐Alkylation of Aromatic Phosphorus Heterocycles and Follow‐Up Reactions
ChemistryEurope, EarlyView.P‐alkylation of λ3σ2‐phosphinines is hindered by weak nucleophilicity and scarce synthetic access, previously requiring multistep routes or extreme electrophiles. A direct ambient‐condition method is reported using 3,5‐bis(trimethylsilyl)‐phosphinine/B(C6F5)3 with esters or iso(thio)cyanates to generate stable 1‐R‐phosphininium salts.
Samantha Frank +6 more
wiley +1 more source
Conformational Trajectory of the Molecular Chameleon Grazoprevir from Formulation to Target‐Bound
Chemistry – A European Journal, EarlyView.ABSTRACT Macrocycles represent a promising class of beyond‐rule‐of‐5 (bRo5) therapeutics, capable of targeting proteins traditionally considered undruggable by conventional small molecules. Macrocycles exhibit intrinsic flexibility and often display a “chameleon‐like” ability to adapt to their environment, thereby enhancing their oral bioavailability ...
Lianne H. E. Wieske +5 more
wiley +1 more source
Dipolar Molecular Motor Candidates with Planar Chirality
Chemistry – A European Journal, EarlyView.Two prototypes of molecular motors with simultaneous implementation of planar chirality and a permanent dipole have been designed and synthesized in 7 steps with overall yields of 2.8 to 5.5%. Abstract Two molecular motor candidates built around ruthenium(II) centers featuring both planar chirality and a permanent dipole have been synthesized in seven ...
Thomas A. Hector +5 more
wiley +1 more source
A [3]Rotaxane Containing {Ti7Ga} Rings Linking CuII: Synthesis, Structure, and Spectroscopic Studies
Chemistry – A European Journal, EarlyView.Extended hybrid inorganic‐organic [2]‐ and [3]‐rotaxanes are reported based on heterometallic rings with threads that link CuII complexes; the crystal structures are reported, and the solution behavior is investigated by double electron electron resonance spectroscopy methods.
Selena J. Lockyer +7 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Staggered, square, and heavily bent dimers occur in the five known solvatomorphs of paddlewheel (PW) complex [PtVO(SOCPh)4]. These and other structural motifs are well within energetic reach due to the shallow potential energy surface that guides dimerization and are included in a revised classification of available structural data on heterobimetallic ...
Olga Mironova +3 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.One‐pot transition‐metal‐free methods for the synthesis of all three bonds of the alkyne's triple bond are reviewed. After analysis of several named reactions and discussion of improvements, recent advances in the synthesis of alkynes are discussed. Each section contains a proposed reaction mechanism and analysis of the strengths and weaknesses of the ...
Eugene Kim +4 more
wiley +1 more source
Twisted 1‐ and 2‐Azaperopyrenes: Synthesis, Structure, and Properties
Chemistry – A European Journal, EarlyView.ABSTRACT A synthesis of hitherto unknown 1‐ and 2‐azaperopyrenes, twisted nitrogen‐doped peropyrenes, is reported. The synthesis is based on a Brønsted acid‐mediated benzannulation of alkynes. Key alkyne intermediates are synthesized via two complementary routes, including a Pd/C‐catalyzed, copper‐ and amine‐free Sonogashira‐type coupling of (hetero ...
Ricardo Molenda +4 more
wiley +1 more source