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Upstream product

• 123-31-9 hydroquinone 
• 117241-33-5 3,4,5-tris(dodecanyloxy)benzoyl chloride 
• 123126-39-6 methyl [3,4,5-tris(n-dodecan-1-yloxy)]benzoate 
• 143-15-7 1-dodecylbromide 
• 99-24-1 methyl galloate 
• 117241-31-3 3,4,5-tridodecyloxy benzoic acid 
• 103-16-2 4-Benzyloxyphenol 
• 934824-23-4 3,4,5-Tris-dodecyloxy-benzoic acid 4-benzyloxy-phenyl ester 

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• 1036711-68-8 1,3,5-tris(3,4,5-tridodecyloxybenzoyloxy-4'-phenyloxycarbonyl)benzene 

Relevant academic research and scientific papers

Molecular factors responsible for the formation of the axially polar columnar mesophase ColhPA

The structure of hexacatenar bent-shape molecules has been systematically modified in order to determine the main molecular factors responsible for the appearance of the axially polar columnar mesophase. It was found that the stability of the polar phase

Tuning the polarization along linear polyaromatic strands for rationally inducing mesomorphism in lanthanide nitrate complexes

The opposite orientation of the ester spacers in the rodlike ligands L4C12 (benzimidazole-OOC-phenyl) and L5C12 (benzimidazole-COO-phenyl) drastically changes the electronic structure of the aromatic systems, without affecting their meridional Incoordination to trivalent lanthanides, Ln111, and their thermotropic liquid crystalline (i.e., mesomorphic) behaviors. However, the rich mesomorphism exhibited by the complexes [Ln(L4C12)-(NO3)3] (Ln = La-Lu) vanishes in [Ln-(L5C12)(NO3)3], despite superimposable molecular structures and comparable photophysical properties. Density functional theory (DFT) and time-dependant DFT calculations performed in the gas phase show that the inversion of the ester spacers has considerable effects on the electronic structure and polarization of the aromatic groups along the strands, which control residual intermolecular interactions responsible for the formation of thermotropic liquid-crystalline phases. As a rule of thumb, an alternation of electron-poor and electron-rich aromatic rings favors intermolecular interactions between the rigid cores and consequently mesomorphism, a situation encountered for L4C12, L5C12, [Ln(L4C12)(NO3)3], but not for [Ln(L5 C12)(NO3)3]. The intercalation of an additional electron-rich diphenol ring on going from [Ln(L5C12)-(NO 3)3] to [Ln(L6C12)(NO3)3] restores mesomorphism despite an unfavorable orientation of the ester spacers, in agreement with our simple predictive model.

The synthesis and mesomorphism of di-, tetra- and hexa-catenar liquid crystals based on 2,2′-bipyridine

2,2′-Bipyridines are known to coordinate to a wide variety of metal centres. In this paper, liquid-crystalline two-chained (dicatenar), four-chained (tetracatenar) and six-chained (hexacatenar) bipyridines are synthesised and their mesomorphism is described. For the tetracatenar bipyridines, a full homologous series, from tetramethoxy to tetratetradecyloxy, was synthesised, and the phase diagram showed a classic progression from nematic and smectic C phases at short chain length, through a cubic phase to a columnar phase.