A chiral center can be introduced in the lateral alkoxy chains of meso
gens containing four rings in the main core. The compounds present a l
arge nematic range. Comparison with compounds having a linear chain in
dicates the bifurcate character of the chain does not drastically affe
ct the nematic range. C-13 NMR spectra in the nematic phase give some
indications about the folding of each branch of the chiral chain along
the core.