Structure and Switching in Bent-Shaped Molecular Liquid Crystal Systems with Two Mesogenic Groups Linked by Alkylene Spacer

Bent‐core mesogens based on semi‐flexible dicyclohexylmethane spacers

“…Additionally, flexible dimers have been shown [12,13] to form ferroand antiferro-electric phases and switching properties have been demonstrated.…”

Liquid crystalline dimeric compounds with an alkylene spacer

“…a diOE use wide angle ring. In fact, the pro le obtained (see the inset in gure 2) by plotting the intensity versus Such a feature has also been observed by Choi et al [8] for the electro-optical switching in a banana-shape d x angle, taken by keeping 2h xed at 19.2ß , showed four peaks. The tilt of the molecule calculated from the compound.…”

“…However, a more important role is played by the parity of the central alkylene spacer. It must be mentioned that Choi et al [8] observed the banana References phase when the spacer chain contained an odd number…”

“…A very recent discovery [8] of dimeric compounds compounds reported by Choi et al [8]. with a exible alkylene spacer between two mesogenic units, giving rise to banana-shape d mesogens forming 2.…”

“…Therefore we planned to make and nal compounds were con rmed by spectral data. a small change in the molecular structure of the parent 1H NMR spectra were recorded using CDCl 3 as compounds reported by Choi et al [8]. Towards this solvent on a 200 MHz Bruker Aveance Series DPX-200 end, we synthesized several dimeric compounds with an NMR spectrometer, with Me 4 Si as an internal standard.…”