158780-85-9

Upstream product

• 154845-75-7 ethyl 4-(dodecyloxy)benzoate 
• 143-15-7 1-dodecylbromide 
• 99-76-3 methyl 4-hydroxylbenzoate 
• 120-47-8 Ethyl 4-hydroxybenzoate 
• 40654-49-7 methyl 4-(dodecyloxy)benzoate 

Downstream Products

• 861682-56-6 N-(4-dodecyloxybenzoyl)-N'-(4'-nitrobenzoyl)hydrazine 
• 1228114-86-0 N'-(4-(dodecyloxy)benzoyl)-N-(4-(dodecyloxy)-2-fluorobenzoyl)hydrazine 

Relevant academic research and scientific papers

Polar effect in columnar unsymmetric 1,3,4-oxa(thia)diazoles

Three new series of heterocyclic 1,3,4-oxa(thia)diazoles 1a-c were prepared and their mesomorphic behavior studied. All compounds 1a exhibited monotropic columnar phases, which were confirmed by powder XRD diffractometer. Compounds 1b were not mesogenic.

Mesogenic heterocyclic pyrazoles, isoxazoles and 1,3,4-oxadiazoles

Three new series of liquid crystals 1-3 derived from heterocyclic pyrazoles, isoxazoles and 1,3,4-oxadiazoles exhibiting smectic A or C phases were reported. Compound 1a exhibited monotropic smectic A phase, while the other two compounds 2-3a were not mes

Polarization effects in mesogenic isoxazoles and 1,3,4-oxadiazoles

Four new series of unsymmetric isoxazoles and 1,3,4-oxadiazoles were prepared, characterized and their mesomorphic properties investigated. Isoxazoles were obtained by condensation-cyclization of β-diketones with hydroxylamine hydrochloride in refluxing T

Aggregation-induced emissions in the mesogenic BF2complexes of aroylhydrazines

Herein, we report the synthesis of two new families of borondifluoride complexes derived from aroylhydrazines and the investigation of their mesomorphic and AIE properties. The crystallographic structure of the mesogenic complex1a-BF2(n= 8) was

Star-shaped fluorescent liquid crystals derived from s-triazine and 1,3,4-oxadiazole moieties

Star-shaped molecules with a central triazine core appended with three 1,3,4-oxadiazole arms have been designed with the variation in the number, length and pattern of peripheral chain substitution. These compounds were investigated for their thermal, electrochemical and photophysical behavior. These nonconventional molecules stabilized wide range columnar phases and demonstrated how one can tune the liquid crystal self-assembly through simple structural modification. The photophysical properties of these star shaped molecules are extremely dependent on the number and pattern of peripheral chain substitution. These compounds exhibit blue and green luminescence in the solid/liquid crystal state. The ability to overcome aggregation induced quenching is due to the favorable packing of these molecules in the solid state. These solid-state emissive materials with good thermal stability and lower band gap may find applications in the construction of emissive displays and organic lasers.

Mesogenic heterocycles formed by bis-pyrazoles and bis-1,3,4-oxadiazoles

Three new series of compounds 1a-c containing multiple heterocyclic 2,5-pyrazoles, 1,3,4-oxadiazole and thiophene exhibiting mesophases were reported. Crystallographic data showed that the crystal 1a (n=8) is a linear-shaped molecule with a molecular leng

Synthesis, characterization and mesomorphic investigations of ester-substituted aroylhydrazones possessing a lateral hydroxyl group

The synthesis, characterization and investigation of a new liquid crystalline series of ester containing aroylhydrazones with a lateral hydroxyl group, N-[4-(4′-alkoxy)benzoyloxy-2-hydroxy-benzylidene]-N′- [4″-alkoxybenzoyl]hydrazine (Cm,nLH), with the same or different peripheral alkoxy chains, and some of their nickel(II) and copper(II) complexes are described. All the ligands, except those with no terminal chains on either end of the molecule, exhibit an enantiotropic SmC mesophase, as evidenced by polarizing optical microscopy and differential scanning calorimetric studies. It has been found that addition of a lateral hydroxyl group along with ester-substitution to the aroylhydrazone core increases the mesomorphic as well as thermal stability of the ligands. Also, the coordination of Ni2+ and Cu2+ with the aroylhydraozone core inhibits the mesomorphic potential of the ligands. A temperature dependent Raman study of one of the members, C12,12LH (m = n = 12) has been made to identify phase transitions and to understand the molecular rearrangement as a result of changes in intermolecular interactions at the phase transition. DFT calculations have been performed to obtain the stable electronic structure of the ligand (C6,6LH) and its nickel(II) complex.

Synthesis and luminescence properties of a lollipop-shaped molecule combined with rod and disc-like mesogens

A novel lollipop-shaped molecule containing 1,3,4-oxadiazole moieties was designed and synthesized. The molecular structure of this 1,3,4-oxadiazole derivative was confirmed by FT-IR, 1H-NMR spectroscopy and elemental analyzer. Its phase behavi

Synthesis and gelation behavior of 4′-propyl-1,1′- bi(cyclohexyl)-4-one 4-alkoxybenzoylhydrazone

A series of new alkoxybenzoylhydrazones of 4′-propyl-1,1′- bi(cyclohexyl)-4-one were prepared as novel low molecular weight organogelators (LMOGs). Their gelation behaviors in 10 solvents were tested. Some of the compounds could form stable gels in bulk o

Liquid crystals derived from semifluorinated alkoxybenzoyl hydrazines

A variety of liquid crystals with semifluorinated tails including 4-alkoxybenzoic acids (1d-h), 4-alkoxybenzoyl hydrazines (2d-h), and N,N0-bis(4-alkoxybenzoyl) hydrazines (3d-m) have been synthesized, and their properties are compared with their perhydrogenated analogs. Semifluorination in compounds 1d-h suppressed nematic phases, and semifluorinated compounds 2d-h exhibit mesogenic behavior where none is found in their perhydrogenated counterparts. Compounds 3a-c with perhydrogenated chains display Cub and SmC phases. Introduction of one semifluorinated chain, 3d-h suppresses the Cub phase but induces a SmA phase, with lower melting but higher clearing temperatures compared to compounds with two semifluorinated chains, 3i-m. The mesogenic properties of some selected binary mixtures of these compounds 3a-d and some lateral fluoro substituted N,N'-bis (4-alkoxybenzoyl) hydrazines 7-9 are also discussed. Copyright Taylor & Francis Group, LLC.