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A Low‐Molar‐Mass, Monodispersive, Bent‐Rod Dimer Exhibiting Biaxial Nematic and Smectic A Phases
Author(s) -
Yelamaggad Channabasaveshwar V.,
Krishna Prasad Subbarao,
Nair Geetha G.,
Shashikala Indudhara Swamy,
Shankar Rao Doddamane S.,
Lobo Chetan V.,
Chandrasekhar Sivaramakrishna
Publication year - 2004
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200453908
Subject(s) - mesogen , molar mass , dimer , liquid crystal , phase (matter) , materials science , bent molecular geometry , molecule , schematic , crystallography , molar ratio , phase transition , condensed matter physics , liquid crystalline , composite material , polymer , organic chemistry , chemistry , physics , optoelectronics , catalysis , electronic engineering , engineering
A “peelable banana” is formed when a bent‐core molecule is linked to a rodlike mesogen through a flexible aliphatic spacer. This is an appropriate description of this novel low‐molar‐mass organic system, which displays a transition from a biaxial nematic (N b ) phase to a biaxial smectic A phase. The illustration gives a schematic representation of the dimeric molecules in the N b phase as well as the corresponding textural and conoscopic patterns obtained.