Optical activity produced by layer chirality in bent-core liquid crystals.
Large optical activity has recently been observed in chiral smectic liquid crystalline phases formed from achiral bent-core molecules. The origin of the optical activity remains unclear and has been attributed to both a helical superstructure and the layer chirality produced by simultaneous tilt and polar ordering of bent-core mesogens in the B2 phase. Here, we directly demonstrate that layer chirality produces optical activity in the well ordered SmC(A)P(A) subphase.
Hough
Loren E
LE
LCMRC, Department of Physics, University of Colorado, Boulder, USA.
Zhu
Chenhui
C
Nakata
Michi
M
Chattham
Nattaporn
N
Dantlgraber
Gert
G
Tschierske
Carsten
C
Clark
Noel A
NA
D050866:Liquid Crystals / Q000737:chemistry*; D055095:Optics and Photonics; D013237:Stereoisomerism