New RM734-like fluid ferroelectrics enabled through a simplified protecting group free synthesis

Abstract

We report a simplified method for preparing RM734, enabling the discovery of new NF materials previously difficult to synthesize using traditional approaches.

Variations in the charge-transport, nonlinear optical, and electro-optical properties of RM734 due to halogenation: a quantum mechanical study

“…The largest values of the order parameter obtained for RM734, RM734-F, RM734-Cl, and RM734-Br were 0.683, 0.593, 0.601, and 0.595, respectively. Richard J. Mandle 55 reported the order parameter of the RM734 liquid crystal, 〈 P 2 〉, as 0.65. In our study, the highest order parameter of RM734 liquid crystal turned out to be 0.683, which is in great agreement with the published work.…”

The Emergence of a Polar Nematic Phase: A Chemist's Insight into the Ferroelectric Nematic Phase

“…[69] Gibb et al reported a series of ferroelectric nematogens which were synthesised without using a protecting intermediate, and of particular note is the observation of the N F phase in a material where the terminal methoxy group was replaced by an iodine. [70] Cruickshank et al also reported a range of RM734-type compounds with multiple lateral groups which exhibited direct N F À I transitions. [71] As these recent additions to the literature show, the ferroelectric nematic phase remains the hottest topic in the field of liquid crystals, and new molecules continue to be synthesised which exhibit the phase.…”

“…Gibb et al . reported a series of ferroelectric nematogens which were synthesised without using a protecting intermediate, and of particular note is the observation of the N F phase in a material where the terminal methoxy group was replaced by an iodine [70] . Cruickshank et al .…”

Evaluation of polar alignment structure and surface anchoring energy in ferroelectric nematic liquid crystals by renormalized transmission spectroscopic ellipsometry

“…[2][3][4][5][6][7][8][9][10] The material development to extract FNLCs' latent potential is ongoing, and dedicated discussions regarding the origin of the ferroelectric nematic phase, its molecular alignment structure, and phase transition behavior are being thrust into the spotlight. [11][12][13][14][15] FNLCs exhibit a polar molecular alignment different from usual nematic liquid crystals (NLCs), with regards to the director n, it is known that n and −n are not equivalent from the viewpoint of the symmetry. The origin of the polar molecular alignment is interpreted to be due to the low structural symmetry of the liquid crystal molecules.…”