Results 51 to 60 of about 2,440 (209)
Angewandte Chemie International Edition, EarlyView.Gas‐phase complexation of chiral methyloxirane by achiral phenol results in induced chiroptical response of phenol. Two pseudo enantiomer complexes are observed, corresponding to hydrogen bonding from phenol to either of the lone electron pair of the methyloxirane oxygen, denoted as Pro R and Pro S, with opposite chiral deformation of phenol and ...
Etienne Rouquet +5 more
wiley +1 more source
Large‐Area Metallic Nanohelices for Engineering Optical Chirality
Small, EarlyView.By exploiting the nanoscale engineering of residual stresses in metallic thin films, this method enables scalable fabrication of submicrometer metallic helices with tunable geometry and material versatility. The resulting structures exhibit pronounced chiroptical responses across the mid‐ to near‐infrared range, offering a robust platform for chiral ...
Thu Hac Huong Le +3 more
wiley +1 more source
Nanophotonics, 2023 Chirality (C) is a fundamental symmetry property of objects. Detecting and distinguishing molecular chirality in the infrared spectrum is important in life sciences, biology, and chemistry.
Li Jingyan, Ye Longfang
doaj +1 more source
Marine Drugs, 2023 Marinobazzanan (1), a new bazzanane-type sesquiterpenoid, was isolated from a marine-derived fungus belonging to the genus Acremonium. The chemical structure of 1 was elucidated using NMR and mass spectroscopic data, while the relative configurations ...
Sultan Pulat +16 more
doaj +1 more source
Marine Drugs, 2019 Three new diketopiperazine alkaloids, including two oxepine-containing diketopiperazines, chrysopiperazines A and B (1 and 2), and one quinazoline-containing diketopiperazine, chrysopiperazine C (5), together with three known analogues (3, 4, and 6 ...
Wei-Feng Xu +6 more
doaj +1 more source
A vibrational circular dichroism implementation within a Slater-type-orbital based density functional framework and its application to hexa- and hepta-helicenes [PDF]
, 2007 We describe the implementation of the rotational strengths for vibrational circular dichroism (VCD) in the Slater-type orbital based Amsterdam Density Functional (ADF) package.
A Aamouche +45 more
core +6 more sources
Bifurcatriol, a New Antiprotozoal Acyclic Diterpene from the Brown Alga Bifurcaria bifurcata
Marine Drugs, 2017 Linear diterpenes that are commonly found in brown algae are of high chemotaxonomic and ecological importance. This study reports bifurcatriol (1), a new linear diterpene featuring two stereogenic centers isolated from the Irish brown alga Bifurcaria ...
Vangelis Smyrniotopoulos +3 more
doaj +1 more source
Morphogenesis and Optoelectronic Properties of Supramolecular Assemblies of Chiral Perylene Diimides in a Binary Solvent System [PDF]
, 2017 1131Ysciescopu
Joon Hak Oh +5 more
core +2 more sources
Frontiers in Chemistry, 2016 Vibrational optical activity spectroscopies, namely vibrational circular dichroism (VCD) and Raman optical activity (ROA), have been emerged in the past decade as a powerful spectroscopic tool for stereochemical information of a wide range of chiral ...
Yunjie eXu +3 more
doaj +1 more source
Solving the Puzzling Absolute Configuration Determination of a Flexible Molecule by Vibrational and Electronic Circular Dichroism Spectroscopies and DFT Calculations: The Case Study of a Chiral 2,2_-Dinitro-2,2_-biaziridine [PDF]
, 2010 The absolute configuration of a recently synthesized racemate of 2,2-dinitro-2,2-biaziridine (2a), a possible catalyst for asymmetric synthesis, has been determined by vibrational circular dichroism (VCD) spectroscopy in the mid-IR region and DFT ...
Abbate S. +8 more
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