Syntheses and circular dichroism (CD) spectra of optically active polyoxazolines and their model compounds

1992 ◽  
Vol 25 (23) ◽  
pp. 6322-6331 ◽  
Author(s):  
Yeong Soo Oh ◽  
Toshimasa Yamazaki ◽  
Murray Goodman
Keyword(s):  
Circular Dichroism ◽  
Optically Active ◽  
Cd Spectra ◽  
Model Compounds ◽  
Circular Dichroïsm

New Approach to the Theory of Circular Dichroism

1998 ◽  
Vol 63 (8) ◽  
pp. 1187-1201 ◽  
Author(s):  
Jaroslav Zamastil ◽  
Lubomír Skála ◽  
Petr Pančoška ◽  
Oldřich Bílek
Keyword(s):  
Electromagnetic Wave ◽  
Circular Dichroism ◽  
Electromagnetic Waves ◽  
Maxwell Equations ◽  
Optically Active ◽  
Semiclassical Approach ◽  
New Approach ◽  
Isotropic Media ◽  
New Formula ◽  
Circular Dichroïsm

Using the semiclassical approach for the description of the propagation of the electromagnetic waves in optically active isotropic media we derive a new formula for the circular dichroism parameter. The theory is based on the idea of the time damped electromagnetic wave interacting with the molecules of the sample. In this theory, the Lambert-Beer law need not be taken as an empirical law, however, it follows naturally from the requirement that the electromagnetic wave obeys the Maxwell equations.

First optically active ferricinium salts: A circular dichroism study

1992 ◽  
Vol 438 (3) ◽  
pp. C26-C28 ◽  
Author(s):  
Viatcheslav I. Sokolov ◽  
Irina A. Mamedyarova ◽  
Marina N. Nefedova ◽  
Günther Snatzke
Keyword(s):  
Circular Dichroism ◽  
Optically Active ◽  
Circular Dichroïsm

scholarly journals Messung und Berechnung der CD-Spektren der Biaryl-Alkaloide Ancistrocladein und Dioncophyllein A [1] / Detection and Calculation of the CD Spectra from the Biaryl Alkaloids Ancistrocladeine and Dioncophylleine A [1]

1993 ◽  
Vol 48 (2) ◽  
pp. 140-148 ◽  
Author(s):  
J. Fleischhauer ◽  
A. Koslowski ◽  
B. Kramer ◽  
E. Zobel ◽  
G. Bringmann ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Absolute Configuration ◽  
Cd Spectra ◽  
Circular Dichroïsm

AbstractThe circular dichroism (CD) of the biaryls ancistrocladeine and dioncophylleine A has been studied. The CNDO/S method in combination with a Boltzmann weighting o f different structures using AM 1 energies has been applied to reproduce the experimental CD spectra o f the two alkaloids with known absolute configuration at with those o f the exciton chirality method.

Circulardichroismusuntersuchungen von Polyalkohol- und Zucker-Vanadat(V)-Komplexen / Circular Dichroism Studies of Polyalcohol and Sugar Vanadate(V) Complexes

1989 ◽  
Vol 44 (11) ◽  
pp. 1464-1472 ◽  
Author(s):  
Hermann Bauer ◽  
Jeanine Brun ◽  
Alexius R. Hernanto ◽  
Wolfgang Voelter ◽  
Spyridon Paraskewas
Keyword(s):  
Circular Dichroism ◽  
Wavelength Range ◽  
Optically Active ◽  
Hydroxyl Groups ◽  
Pyranose Ring ◽  
Cotton Effects ◽  
Circular Dichroïsm

The complexes of tetravanadate ions with optically active polyols and carbohydrates with suitable steric properties show up to four separate cotton effects in the wavelength range of λ = 200-350 nm. Thus it is possible to classify pyranoses into four groups according to their circular dichroitic behaviour and determine the configuration and the conformation of the hydroxyl groups attached to the pyranose ring.

Sign in / Sign up

Export Citation Format

Share Document