Results 151 to 160 of about 73,143 (258)
Aqueous and Surfactant‐Free Synthesis of Nanoscale Covalent Organic Frameworks
Angewandte Chemie, Volume 138, Issue 5, 28 January 2026.We report an aqueous, surfactant‐free, and versatile synthesis method for imine‐linked nanoCOFs incorporating porphyrin units, with tunable size and morphology. The resulting nanoCOFs exhibit excellent aqueous dispersibility, strong light absorption, and significantly enhanced photocatalytic activity.
Xueying Kong +4 more
wiley +2 more sources
Metal catalyzed rearrangement of a 2,2'-bipyridine Schiff-base ligand to a quaterpyridine-type complex [PDF]
, 2007 Champouret +21 more
core +1 more source
Cetyl Pyridinium Chloride [PDF]
Journal of Bacteriology, 1946 R, Quisno, M J, Foter
openaire +3 more sources
Acid‐Promoted ROMP of a Pyridine‐Fused Norbornene Toward Main‐Chain Cationic Polymers
Macromolecular Chemistry and Physics, Volume 227, Issue 3, 16 February 2026.Cationic polymers are valuable materials for applications ranging from biomedicine to ion transport. We report the ROMP of pyrido[2,3‐b]norbornadiene, a pyridine‐fused norbornene monomer, under acidic conditions. Protonation with HCl suppresses deleterious pyridine–Ru coordination, enabling controlled polymerization to afford well‐defined polymers with
An Tran, Vaishak Bhat, Quentin Michaudel
wiley +1 more source
Journal of Physical Organic Chemistry, Volume 39, Issue 2, February 2026.The electrophilicities (Mayr E) of the α, β‐unsaturated ketones A and B were determined by kinetic studies of their reactions with carbanions (reference nucleophiles) in DMSO at 20°C. The different reactivities of A and B were rationalized by DFT calculations.
Christoph Gross +5 more
wiley +1 more source
Journal of Peptide Science, Volume 32, Issue 2, February 2026.The constrained tryptophan (Trp) analog 1,2,3,4‐tetrahydro‐β‐carboline‐3‐carboxylic acid (Tcc) is used to restrict peptide conformation in structure–activity relationship studies. Although Pictet–Spengler cyclization of Trp and aldehydes with mineral acid gives Tcc analogs, such harsh conditions do not tolerate acid‐labile functionality.
Omer S. L. N'dri +10 more
wiley +1 more source
Ab Initio Molecular Dynamics Study of Quadrupolar Spin Relaxation in an Ionic Liquid
Journal of Computational Chemistry, Volume 47, Issue 3, 30 January 2026.This study presents a methodology for describing the relaxation of nuclear spins (with I > 1/2), applicable to ionic liquids of a general nature. Based on ab initio molecular dynamics, we demonstrate the importance of explicit solvation in calculating the relaxation times of the quadrupolar mechanism.
Luciano N. Vidal +2 more
wiley +1 more source
Angewandte Chemie, Volume 138, Issue 4, 22 January 2026.We presented herein that propadiene can chemodivergently form either an allylic moiety or a dienylic moiety under Pd catalysis. Embedding this reactivity pattern into photocatalysis with DHP as the initial radical source and styrene derivatives as the initial acceptor leads to multi‐component allylation and dienylation.
Yi‐Fei Yang +2 more
wiley +2 more sources
A scanning electron microscopy study of the macro-crystalline structure of 2-(2,4-dinitrobenzyl) pyridine [PDF]
The compound, 2-(2,4-dinitrobenzyl) pyridine, was synthesized in the laboratory; an introductory level electron microscopy study of the macro-crystalline structure was conducted using the scanning electron microscope (SEM).
Hammond, Ernest C., Jr. +1 more
core +1 more source
Immunoadsorbents - Preparation and use of cellulose derivatives [PDF]
Antibody isolation from blood by linking antigens to insoluble cellulose ...
Campbell, D. H., Weliky, N.
core +1 more source