Results 171 to 180 of about 152,468 (288)

Chemical Ligation of Backbone N‐hydroxylated Peptides

Chemistry – A European Journal, EarlyView.
Peptide backbone N‐hydroxylation enables sequence‐agnostic fragment ligation via hydroxamate O‐acyl capture and O→N acyl transfer in water. Broad tolerance of sterically demanding nucleophilic residues is observed, and reductive N─O cleavage restores the native amide bond.
Natalia Cano‐Sampaio, Juan R. Del Valle   +1 more
wiley   +1 more source

Deconstructing Chirality: Probing Local and Nonlocal Effects in Azobenzene Derivatives with X-ray Circular Dichroism. [PDF]

J Phys Chem Lett
Khanna A, Freixas VM, Xu L, Rouxel JR, Govind N, Garavelli M, Mukamel S, Tretiak S.   +7 more
europepmc   +1 more source

Simple Guanosine—Amino Acid Hybrids as Low Molecular Weight Hydrogelators

Chemistry – A European Journal, EarlyView.
Unexplored guanosine‐amino acid derivatives act as low molecular weight hydrogelators. Gelation is triggered by K+ ions and pH changes and relies on G‐quadruplex formation. Small changes in the amino acid structure have a strong impact on the mechanical properties of the gels.
Silvia Pieraccini, Samuele Ruffoli, Martina Occhi, Demetra Giuri, Devis Montroni, Claudia Tomasini, Stefano Masiero   +6 more
wiley   +1 more source

Excited State Assignment and State-Resolved Photoelectron Circular Dichroism in Chalcogen-Substituted Fenchones. [PDF]

Chemphyschem
Vasudevan S, Giesen SM, Ranecky ST, Marder L, Vidanović I, Kour M, Küstner-Wetekam C, Ladda N, Das S, Rosen T, Popkova V, Lee HG, Kargin D, Schäfer T, Hans A, Baumert T, Berger R, Braun H, Ehresmann A, Fuchs GW, Giesen TF, Mikosch J, Pietschnig R, Senftleben A.   +23 more
europepmc   +1 more source

Light‐Induced Anion Translocation to Control Helical Folding in an Artificial Communication System

Chemistry – A European Journal, EarlyView.
Anion‐induced helical folding of an oligomer is controlled indirectly and reversibly by light through anion uptake/release by a photoresponsive receptor. Thus, a light signal is processed into a chemical signal in a communication‐type three‐component supramolecular system.
Indigo M. Bekaert, Suchismita Saha, Julia Villalva, David Villarón, Maxime A. Siegler, Sander J. Wezenberg   +5 more
wiley   +1 more source

Photoelectron spectroscopy and circular dichroism of an open-shell organometallic camphor complex. [PDF]

Struct Dyn
Brandt VK, Pugini M, Kaltsoyannis N, Garcia GA, Powis I, Nahon L, Stemer D.   +6 more
europepmc   +1 more source

Dynamic Control of Nucleic Acids Self‐Assembly and Expression Using Photoswitches

Chemistry – A European Journal, EarlyView.
We review here the recent progress made in the design of molecular photoswitches, and highlight their implementation for the dynamic control over nucleic acids self‐assembly and expression. ABSTRACT Synthetic nucleic acids have become readily available and now constitute versatile building blocks in materials science—where they can be used to engineer ...
Noemí Nogal, Hugo Laigle, Maxime Mansy, Sébastien Ulrich, Mathieu Surin   +4 more
wiley   +1 more source

Enantioselective homologation of helical architectures from fluorenones to phenanthrenones with enhanced circular dichroism. [PDF]

Nat Commun
Li S, Yan S, Liu Z, Zhang Y, Zhou Y, Feng X, Feng LW, Liu X.   +7 more
europepmc   +1 more source

Solvent Effects on the Conformational Preferences of 2,6‐Pyridylcarboxamide Foldamers

Chemistry – A European Journal, EarlyView.
The marked effect of organic solvents and water/methanol mixtures on the conformational preferences of a soluble chiral foldamer has been established in a diverse array of seventeen distinct environments. ABSTRACT The marked influence of organic solvents and water on the conformational preferences of a chiral, soluble 2,6‐pyridylcarboxamide foldamer ...
Alexander R. Davis, Sena Öztürk, Kushal Samanta, Louise Male, Adam A. L. Michalchuk, Sarah J. Pike   +5 more
wiley   +1 more source

Monitoring the Switching from Base-on to Base-off Forms of Vitamin B₁₂ by Natural and Magnetic Circular Dichroism Spectroscopies. [PDF]

Anal Chem
Machalska E, Mazzeo G, Wierzba AJ, Dybaś J, Rode JE, Abbate S, Gryko D, Baranska M, Longhi G, Fusè M.   +9 more
europepmc   +1 more source