Results 121 to 130 of about 56,768 (286)
ChemFoodChem, EarlyView.Comprehensive two‐dimensional gas chromatography (GC×GC) is gaining importance in food analysis, particularly for volatile and aroma‐related compounds. This review examines recent applications across plant‐, animal‐, and other food matrices, revealing trends in sample preparation, column selection, modulation and detection, while highlighting ...
Ana Jano +3 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.The development of chiral pda derived methoxy ligands L1a [1(R,R)] and L1b [1(S,S)], along with their phenol derivatives L2a [2(R,R)] and L2b [2(S,S)], and their respective Tb(III) complexes is described. These Tb‐complexes exhibited Tb(III)‐centered emission upon and their chiroptical properties were probed by using both CD and CPL spectroscopy ...
Jennifer E. Jones +3 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.The energy level diagrams for the ν(C═O) and the δ(N─H) vibrations, resulting of combining in‐phase and out‐of‐phase modes on the basis of their local symmetries, was built by applying the exciton coupling theory to a new class of chiral macrocycles, based on the 2,5‐diaminoterephthalate scaffold.
Samara Medina +4 more
wiley +1 more source
Chiral‐at‐Metal Racemization of Tris‐Chelated Octahedral Complexes: A DFT Case Study of Al(acnac)3
Chemistry – A European Journal, EarlyView.Racemization and isomerization of M(a‐chel)3 complexes was unraveled using Al(acnac)3 as a model. The ∆/Λ‐fac isomers have four racemization paths of which one includes isomerization to and racemization of the mer isomer. N‐substitution should enable separation of the ∆‐fac and Λ‐fac enantiomers.
George Dhimba +2 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Naphthalene diimide–N‐heterocyclic carbene iridium complexes display uncommon multistimuli‐responsive behavior combining strong Cl(lp)···π interactions, ligand non‐innocence, visible‐light photoreduction, and conPET photocatalysis. The study also provides new insight into the interaction of NDI platforms with fluoride/basic anions, revealing unexpected
Maite Silva‐Muñoz +2 more
wiley +1 more source
Thiamine Diphosphate‐Dependent Biocatalysis in the 21st Century
Chemistry – A European Journal, EarlyView.This account summarizes the major discoveries and recent advances, highlighting the biocatalytic abilities, mechanistic studies, and feature‐based classification that are shaping emerging perspectives on thiamine diphosphate (ThDP)‐dependent catalysis.
Lucrezia Lanza +2 more
wiley +1 more source
Foldamers With Two Distinct Helical Motifs Controlled by Solvent
Chemistry – A European Journal, EarlyView.Alternating o‐phenylene and 2,3‐pyrazinylene oligomers were synthesized and their conformational behavior studied by NMR spectroscopy, x‐ray crystallography, and DFT calculations. They fold into well‐defined helices, but, remarkably, the folding motif depends on solvent: a compact helix in chloroform, but a much longer extended helix in acetone ...
Yinhui Liao +6 more
wiley +1 more source
Green chiral HPLC method on a polysaccharide column under hydro-organic conditions for the determination of Levobupivacaine, Ropivacaine, and their enantiomeric impurities. [PDF]
BMC ChemSedki NG +3 more
europepmc +1 more source
Benzylic Oxidation of Pillar[5]Arene: From Homo‐ to Cross‐Conjugated Macrocyclic Systems
Chemistry – A European Journal, EarlyView.Selective benzylic oxidations of pillar[5]arene have been carried out to generate all the possible oxidized derivatives containing from one up to five carbonyl subunits. Effects resulting from the homo‐ and the cross‐conjugation within this series of compounds have been investigated in details and analyzed with the help of DFT calculations.
Jorge Juan Marco‐Guimbao +8 more
wiley +1 more source
<i>In situ</i> synthesis of gold nanoparticles using tryptophan enantiomers for determination of enantiomeric composition. [PDF]
RSC AdvRadmanesh R +3 more
europepmc +1 more source