180678-31-3

Upstream product

• 2150-43-8 3,4-dihydroxybenzoic acid methyl ester 
• 112-89-0 1-Bromooctadecane 

Downstream Products

• 121925-14-2 3,4-di-n-octadecyloxybenzoic acid 
• 180678-42-6 4-(3,4-di(octadecyloxy)benzoyloxy)benzoic acid 
• 180678-37-9 benzyl 4-(3,4-di(octadecyloxy)benzoyloxy)benzoate 
• 1187177-76-9 3,4-di(octadecyloxy)benzyl alcohol 

Relevant academic research and scientific papers

Hexagonal array formation by intermolecular halogen bonding using a binary blend of linear building blocks: STM study

Hexagonal arrays were fabricated via intermolecular halogen bonding between two linear molecular building blocks in a bicomponent blend. The substitution position of the pyridine N atom involved in the halogen bond plays an important role in the formation

Triketonate difluoroboron complexes. Substitution-dependent liquid crystal and photophysical properties

Novel alkyloxyphenyl-substituted β,δ-triketonate difluoroboron complexes have been efficiently synthesised and thoroughly characterised. Significant features such as liquid crystal behaviour and solid and solution fluorescence are observed in all cases. The mesomorphism was determined by the presence of one, two or three alkyl chains in each substituent aromatic group of the triketonate ligand. So, smectic C mesophases were found for compounds carrying two lateral chains, each of them located at one of each phenyl substituent, while the presence of four or six chains at the whole molecule gave rise to smectic A or discotic lamellar and hexagonal columnar mesophases, respectively. Fluorescence in the solid state and in solution is again proved to be dependent on the ligand substitution as well as to be maintained in the mesophase. These multifunctional materials also present luminescent sensor activity towards Hg2+ and Cu2+.

Mesomorphic imidazolium salts: New vectors for efficient siRNA transfection

The preparation of chloride (1n) and bromide (2n) derivatives of 1-methyl-3-[3,4-bis(alkoxy)benzyl]-4H-imidazolium with n ) 6, 12, 16, 18 is described. The two series of salts possess a rich thermotropic mesomorphism, chain-length de

Rodlike metallomesogens containing nickel(II), palladium(II) and copper(II) based on novel enaminoketonato ligands

Several new enaminoketone mesogens were synthesized and coordinated to various metal salts to yield a variety of novel rodlike metal-containing liquid crystals. The mesophases were characterized by polarized optical microscopy (POM), differential scanning calorimetry (DSC) and small-angle X-ray scattering (SAXS). Whereas the free ligands display SmA and nematic mesophases, the Ni II and PdII complexes give rise to SmC and nematic phases, and the paramagnetic CuII mesogens to a narrow temperature-range nematic mesophase only. The magnetic behaviour of the latter was studied by means of EPR and magnetic susceptibility (SQUID) measurements.

Phasmidic phases in macrocyclic liquid crystals

In this article we describe the synthesis, characterisation and phase behaviour of some phasmidic liquid crystals containing the diaza 18-crown-6 macrocyclic core. Seven compounds were synthesised, five tetracatenar and two hexacatenar. The terminal alkoxy chains were varied in length from ten to eighteen carbon atoms, and the number of phenyl rings in the mesogenic units was set at either two or three. Depending on the nature of the mesogenic moiety, hexagonal columnar phasmidic and smectic phases were found to occur for these systems. The natures and structures of the columnar phases found for these systems are discussed in relation to the conformational structure of the macrocyclic core and to the overall geometry, shape and flexibility of the molecular structures.