Induced Smectic-G Phase Through Intermolecular H-Bonding: Part III. Influence of Alkyl Chain Length of p-n-Alkoxybenzoic Acids on Thermal and Phase Behaviour

Study of thermal and electrical properties exhibited by two ferroelectric self assembly systems

“…4 represents the FTIR spectra of hydrogen bonded complex of (S)-1,2-cholo-3-(4-hydroxy) phenyl propionic acid with octyl benzoic (CTy + 8BA), as a representative case. The solid state spectra of free alkyloxy benzoic acid is reported [21] to have two sharp bands at 1685 cm À1 and 1695 cm À1 due to the frequency m(C@O) mode. The doubling feature of this stretching mode confirms the dimeric nature of alkyloxy benzoic acid at room temperature [21].…”

“…HBFLC usually are composed of a proton donor and acceptor molecules. The reported data [5][6][7][8][9][10][11][12][18][19][20][21][22] indicates the fact that if an HBLC material to be mesogenic it is enough either one of proton donor or an acceptor molecules exhibits mesogenic property. The chemical molecular structure [10,[18][19][20][21][22] of HBFLC is co-related to the physical properties exhibited by it.…”

“…The reported data [5][6][7][8][9][10][11][12][18][19][20][21][22] indicates the fact that if an HBLC material to be mesogenic it is enough either one of proton donor or an acceptor molecules exhibits mesogenic property. The chemical molecular structure [10,[18][19][20][21][22] of HBFLC is co-related to the physical properties exhibited by it. The reported literature suggests the formation of HBFLC through carboxylic acids as well as from mixtures of unlike molecules capable of interacting through Hbonding [13][14][15][16][17][18][19][20][21].…”

“…Hydrogen bonded liquid crystalline materials are known since early 1960s [3,4], however in the recent times [5][6][7][8][9][10][11][12][13][18][19][20][21] much work has been done on these complexes. Hydrogen bond enables various mesogenic and non mesogenic compounds to form complexes which exhibit rich phase polymorphism.…”

“…The chemical molecular structure [10,[18][19][20][21][22] of HBFLC is co-related to the physical properties exhibited by it. The reported literature suggests the formation of HBFLC through carboxylic acids as well as from mixtures of unlike molecules capable of interacting through Hbonding [13][14][15][16][17][18][19][20][21]. Usually in all these HBLC the rigid core is made up of covalent and non covalent hydrogen bonding.…”