Results 41 to 50 of about 2,440 (209)

Nucleic acid vibrational circular dichroism, absorption, and linear dichroism spectra. I. A DeVoe theory approach [PDF]

, 1997
Infrared (IR) vibrational circular dichroism (VCD), absorption, and linear dichroism (LD) spectra of four homopolyribonucleotides, poly(rA), poly(rG), poly(rC), and poly(rU), have been calculated, in the 1750–1550 cm-1 spectral region, using the DeVoe ...
Self, B.D., Moore, D.S.
core   +1 more source

A comparative study of overtone CH- stretching vibrational circular dichroism spectra of fenchone and camphor [PDF]

, 2004
Near-infrared vibrational circular dichroism (VCD) spectra in the region 1500-850 nm are recorded for both enantiomers of camphor and fenchone using a home-built dispersive instrument.
ABBATE S, CASTIGLIONI E, GANGEMI R, LEBON F, LIGHTNER D.A, LONGHI G, PULTZ V.M   +6 more
core   +1 more source

A Vibrational Circular Dichroism Approach To The Determination Of The Absolute Configuration Of Flexible And Transparent Molecules: Fluorenone Ketals Of 1,N-Diols [PDF]

, 2010
The infrared absorption (IR) and vibrational circular dichroism (VCD) spectra for five ketal molecules, three of which obtained from 1,2-diols and two from 1,3-diols, were recorded in the mid-IR region.
ABBATE S, LONGHI G, ROSINI C, SCAFATO P
core   +1 more source

Rotenoids from the Roots of Vicia faba L. (Fabaceae): Structural Characterization, Cytotoxic Effects, and Molecular Docking. [PDF]

Chem Biodivers
ABSTRACT The chemical study of the ethanolic extract from the roots of Vicia faba led to the isolation of two isoflavonoids, alfalone and 8‐O‐methylretusine, as well as a mixture of rotenoids, including clitoriacetal and clitoriacetal B, the latter of which is reported for the first time.
Sipoloni VM, Silva-Silva JV, Ferreira EG, Lee EY, Junior JMB, Uemi M, de Medeiros LS, Jimenez PC, Veiga TAM.   +8 more
europepmc   +2 more sources

Harmonic and Anharmonic Features of IR and NIR Absorption and VCD Spectra of Chiral 4-X-[2.2]Paracyclophanes [PDF]

, 2007
The vibrational absorption spectra and vibrational circular dichroism (VCD) spectra of both enantiomers of 4-X-[2.2]paracyclophanes (X ) COOCD3, Cl, I) have been recorded for a few regions in the range of 900- 12000 cm-1.
ABBATE S, CASTIGLIONI E, GANGEMI F, GANGEMI R, LONGHI G, RUZZICONI R, SPIZZICHINO S   +6 more
core   +1 more source

Chiral Tectonics: VCD and ECD Application for Epimerization of a Star-Burst Tetranuclear Complex with a Labile Central Core

Inorganics, 2018
The present article reports the application of vibrational circular dichroism (VCD) and temperature-dependent electronic circular dichroism (ECD) methods to reveal the dynamical aspects of a star-burst tetranuclear metal complex with a labile central ...
Hisako Sato, Fumi Sato, Akihiko Yamagishi   +2 more
doaj   +1 more source

Analysis of the major chiral compounds of Artemisia herba-alba essential oils (EOs) using reconstructed vibrational circular dichroism (VCD) spectra: En route to a VCD chiral signature of EOs [PDF]

Analytica Chimica Acta, 2016
An unprecedented methodology was developed to simultaneously assign the relative percentages of the major chiral compounds and their prevailing enantiomeric form in crude essential oils (EOs). In a first step the infrared (IR) and vibrational circular dichroism (VCD) spectra of the crude essential oils were recorded and in a second step they were ...
Said, Mohammed El-Amin, Vanloot, Pierre, Bombarda, Isabelle, Naubron, Jean-Valère, Dahmane, El Montassir, Aamouche, Ahmed, Jean, Marion, Vanthuyne, Nicolas, Dupuy, Nathalie, Roussel, Christian   +9 more
openaire   +3 more sources

Calculated Absorption and Vibrational Circular Dichroism Spectra of Fundamental and Overtone Transitions for a Chiral HCCH Molecular Fragment in the Hypothesis of Coupled Dipoles [PDF]

, 2005
We establish the general behavior of absorption and vibrational circular dichroism spectra (VCD) of a chiral HCCH fragment lacking all symmetry elements; the study is limited to CH-stretching modes, and the Hamiltonian employed is written in terms of ...
Abbate, Abbate, Abbate, Abbate, Abbate, Abbate, Abbate, Abbate, Amat, Bak, Barnett, Cao, Castiglioni, Child, Escribano, Faulkner, Halonen, Heller, Henry, Herzberg, Keiderling, Kjaergaard, Lehmann, Longhi, Longhi, MAPLE, Nafie, Nafie, Polavarapu, Reddy, Ricard, Ricard-Lespade, Sage, Sibert, Snyder, Stephens   +35 more
core   +1 more source

Absolute configuration by vibrational circular dichroism of anti-inflammatory macrolide briarane diterpenoids from the Gorgonian Briareum asbestinum

Scientific Reports, 2021
The four new briarane diterpenoids 2-butyryloxybriarane B-3 (2), 9-acetylbriarenolide S (3), briarenolide W (4), and 12-isobriarenolide P (5), along with briarane B-3 (1) and the five known diterpenes 6–10 were isolated from the gorgonian coral Briareum ...
Dawrin Pech-Puch, Pedro Joseph-Nathan, Eleuterio Burgueño-Tapia, Carlos González-Salas, Diana Martínez-Matamoros, David M. Pereira, Renato B. Pereira, Carlos Jiménez, Jaime Rodríguez   +8 more
doaj   +1 more source

Vibrational chiral spectroscopy with femtosecond laser pulses [PDF]

, 2010
Vibrational circular dichroism and optical rotary dispersion spectra can provide detailed information about molecular structure and the conformation of biomolecules.
Bonmarin, M, Helbing, J
core   +2 more sources