Non-empirical assignment of the absolute configuration of (−)-naringenin, by coupling the exciton analysis of the circular dichroism spectrum and the ab initio calculation of the optical rotatory power

2004 ◽  
Vol 2 (24) ◽  
pp. 3602-3607 ◽  
Author(s):  
Egidio Giorgio ◽  
Nunziatina Parrinello ◽  
Salvatore Caccamese ◽  
Carlo Rosini
Keyword(s):  
Circular Dichroism ◽  
Ab Initio ◽  
Absolute Configuration ◽  
Ab Initio Calculation ◽  
Circular Dichroism Spectrum ◽  
Rotatory Power ◽  
Optical Rotatory ◽  
The Absolute ◽  
Circular Dichroïsm ◽  
Optical Rotatory Power

scholarly journals Notizen: Helixinversion in einem binären Mischsystem nematisch/cholesterisch/Helical Inversion of a Binary System of a Nematic and a Cholesteric Mesophase

1973 ◽  
Vol 28 (5) ◽  
pp. 799-800
Author(s):  
H. Finkelmann ◽  
H. Stegemeyer
Keyword(s):  
Circular Dichroism ◽  
Liquid Crystal ◽  
Binary System ◽  
Cholesteric Liquid Crystal ◽  
Rotatory Power ◽  
Optical Rotatory ◽  
Circular Dichroïsm ◽  
Helical Twisting Power ◽  
Optical Rotatory Power

In a binary system of a nematic and a cholesteric liquid crystal an inversion of the helix - sense has been observed at a definite composition xn by measurements of circular dichroism and optical rotatory power. The inversion is accompanied by a decrease of the helical twisting power approaching zero at xn .

Sign in / Sign up

Export Citation Format

Share Document