From Mesocates to Helicates: Structural, Magnetic and Chiro‐Optical Studies on Nickel(II) Supramolecular Assemblies Derived from Tetradentate Schiff Bases
2018 / Chemistry a European Journal
Found 9617 Results / Page 177 of 481
Conformation and dynamics of soluble repetitive domain elucidates the initial β-sheet formation of spider silk
2018 / Nature Communications
The β-sheet is the key structure underlying the excellent mechanical properties of spider silk. However, the comprehensive mechanism underlying β-sheet… Continue reading Conformation and dynamics of soluble repetitive domain elucidates the initial β-sheet formation of spider silk
Conformational landscape in chiral terpenes from vibrational spectroscopy and quantum chemical calculations: S-(+)-carvone
2009 / Vibrational Spectroscopy
S-(+)-carvone (5-isopropenyl-2-methylcyclohex-2-en-1-one) is the primary component in the oil of caraway. Different experimental and theoretical works reveal that there are… Continue reading Conformational landscape in chiral terpenes from vibrational spectroscopy and quantum chemical calculations: S-(+)-carvone
Chiral terpenes in different phases: R-(−)-camphorquinone studied by IR–Raman–VCD spectroscopies and theoretical calculations
2011 / Structural Chemistry
R-(−)-camphorquinone is a bicyclical terpenoid with many usages and application in different fields. Different experimental and theoretical works reveal that… Continue reading Chiral terpenes in different phases: R-(−)-camphorquinone studied by IR–Raman–VCD spectroscopies and theoretical calculations
Investigations of methyl lactate in the presence of reverse micelles by vibrational spectroscopy and circular dichroism
2012 / Vibrational Spectroscopy
The FT-IR and vibrational circular dichroism (VCD) spectra of (S)- and -(R)-methyl lactate have been recorded for neat samples and… Continue reading Investigations of methyl lactate in the presence of reverse micelles by vibrational spectroscopy and circular dichroism
Vibrational Circular Dichroism Spectroscopic Study on Circularly Polarized Light-induced Chiral Domains in the B4 Phase of a Bent Mesogen
2007
In this work, we report vibrational circular dichroism (VCD) spectra in chiral domains induced by circularly polarized light (CPL) irradiation… Continue reading Vibrational Circular Dichroism Spectroscopic Study on Circularly Polarized Light-induced Chiral Domains in the B4 Phase of a Bent Mesogen
Sol–gel synthesis of ladder polysilsesquioxanes forming chiral conformations and hexagonal stacking structures
2009 / Journal of Materials Chemistry
Ladder polysilsesquioxanes containing ammonium chloride and chiral groups as side-chains were prepared by sol–gel copolycondensation of 3-aminopropyltriethoxysilane and chiral organotriethoxysilane under acidic conditions, forming… Continue reading Sol–gel synthesis of ladder polysilsesquioxanes forming chiral conformations and hexagonal stacking structures
Discrete and sequential formation of helical nanofilaments in mixtures consisting of bent- and rod-shaped molecules
2011 / Soft Matter
We have studied the phase transition from the isotropic to B4 phase in a mixture of bent- and rod-shaped molecules. Highly… Continue reading Discrete and sequential formation of helical nanofilaments in mixtures consisting of bent- and rod-shaped molecules
Conformational landscape of l-threonine in neutral, acid and basic solutions from vibrational circular dichroism spectroscopy and quantum chemical calculations
2013 / Tetrahedron: Asymmetry
The biological relevance of amino acids is well known. They can be used as zwitterionic, cationic or anionic forms according… Continue reading Conformational landscape of l-threonine in neutral, acid and basic solutions from vibrational circular dichroism spectroscopy and quantum chemical calculations
Vibrational Circular Dichroism and Theoretical Study of the Conformational Equilibrium in (−)‐S‐Nicotine
2014 / ChemPhysChem
We report an extensive study of the molecular and electronic structure of (−)‐S‐nicotine, to deduce the phenomenon that controls its… Continue reading Vibrational Circular Dichroism and Theoretical Study of the Conformational Equilibrium in (−)‐S‐Nicotine
Towards the limits of vibrational circular dichroism spectroscopy: VCD spectra of some alkyl vinylethers
2016 / Chirality
Three alkyl vinylethers from our collection of chiral samples were investigated through VCD spectroscopy, in combination with DFT calculations. Despite… Continue reading Towards the limits of vibrational circular dichroism spectroscopy: VCD spectra of some alkyl vinylethers
Metolachlor stereoisomers: Enantioseparation, identification and chiral stability
2016 / Journal of Chromatography A
Metolachlor is a chiral herbicide consisting of four stereoisomers, which is typically used as a racemic mixture or is enriched… Continue reading Metolachlor stereoisomers: Enantioseparation, identification and chiral stability
Vibrational Optical Activity of BODIPY Dimers: The Role of Magnetic–Electric Coupling in Vibrational Excitons
2017 / The Journal of Physical Chemistry A
The vibrational exciton (VE) interpretation of intense bisignated couplets in vibrational circular dichroism (VCD) spectra of a pair of atropisomeric… Continue reading Vibrational Optical Activity of BODIPY Dimers: The Role of Magnetic–Electric Coupling in Vibrational Excitons
Enantioseparation of four amide herbicide stereoisomers using high-performance liquid chromatography
2016 / Journal of Chromatography A
The chirality of herbicides has been the focus of research. However, there is little information on the enantioseparation of amide… Continue reading Enantioseparation of four amide herbicide stereoisomers using high-performance liquid chromatography
Studying the stereostructures of biomolecules and their analogs by vibrational circular dichroism
2016 / Polymer Journal
The functions of biomacromolecules are largely governed by their stereostructure (i.e., configuration and conformation). Therefore, detailed understanding of their structural… Continue reading Studying the stereostructures of biomolecules and their analogs by vibrational circular dichroism
Stereochemistry (and Conformation) of Nucleosides and Their Synthetic Precursors by Vibrational Circular Dichroism.
2018 / Current protocols in nucleic acid chemistry
The chemistry of artificial nucleosides is associated with the difficulties in the characterization of the stereochemistry and conformation of their… Continue reading Stereochemistry (and Conformation) of Nucleosides and Their Synthetic Precursors by Vibrational Circular Dichroism.
Chiral triazole fungicide tebuconazole: enantioselective bioaccumulation, bioactivity, acute toxicity, and dissipation in soils
2018 / Environmental Science and Pollution Research
Enantioselectivity in environmental behavior and toxic effect of chiral pesticides has been received much attention. In this study, enantioselective bioactivity… Continue reading Chiral triazole fungicide tebuconazole: enantioselective bioaccumulation, bioactivity, acute toxicity, and dissipation in soils
Enantiomeric characterization of herbicide lactofen: Enantioseparation, absolute configuration assignment and enantioselective activity and toxicity
2018 / Chemosphere
Chiral herbicides consist of two or more enantiomers, which usually differ in their biological properties and behave enantioselectively in biochemical process. Scant studies have… Continue reading Enantiomeric characterization of herbicide lactofen: Enantioseparation, absolute configuration assignment and enantioselective activity and toxicity
Synthesis and structure analysis of ferrocene‐containing pseudopeptide
2018 / Peptide Science
Ferrocene with its aromaticity and facile redox properties is an attractive moiety to be incorporated into functional moieties. Medicinal applications… Continue reading Synthesis and structure analysis of ferrocene‐containing pseudopeptide
In-Situ Monitoring of Sol-Gel Transition by Temperature-dependent VCD Method: Signal Enhancement Induced by Gelation
2018 / Chemical Letters
Temperature-dependent vibrational circular dichroism (VCD) measurements were performed in situ during the solgel transformation of a chiral low-molecular weight gelator,… Continue reading In-Situ Monitoring of Sol-Gel Transition by Temperature-dependent VCD Method: Signal Enhancement Induced by Gelation