1050414-41-9

Basic information

• Product Name: naphthalene-1,7-diyl bis(4-formylbenzoate)
• Synonyms: naphthalene-1,7-diyl bis(4-formylbenzoate)
• CAS NO: 1050414-41-9
• Molecular Weight: 424.409
• Mol File: 1050414-41-9.mol
• Article Data: 7

Chemical Properties

• CAS DataBase Reference: naphthalene-1,7-diyl bis(4-formylbenzoate)(CAS DataBase Reference)
• NIST Chemistry Reference: naphthalene-1,7-diyl bis(4-formylbenzoate)(1050414-41-9)
• EPA Substance Registry System: naphthalene-1,7-diyl bis(4-formylbenzoate)(1050414-41-9)

Safety Data

• Hazardous Substances Data: 1050414-41-9(Hazardous Substances Data)

Upstream product

• 575-38-2 1,7-Dihydroxynaphthalene 
• 619-66-9 4-Carboxybenzaldehyde 

Downstream Products

• 1243696-56-1 C₆₆H₈₀F₂N₂O₆ 
• 1246364-96-4 C₆₆H₈₂N₂O₄S₂ 

Relevant articles and documents

Switchable columnar phase formed from bent-shaped molecules with low bent-angle naphthalene central core and alkylthio tail

Novel low-angle bent molecules with 1,7-naphthalene central core and alkylthio tails form the hexagonal columnar phase as well as the well-known B4 phase. The columnar phase has a large two-dimensional hexagonal lattice of 65-70 and exhibits the antiferro

Two-Dimensional Skyrmion Lattice Formation in a Nematic Liquid Crystal Consisting of Highly Bent Banana Molecules

We synthesized a novel banana-shaped molecule based on a 1,7-naphthalene central core that exhibits a distinct mesomorphism of the nematic-to-nematic phase transition. Both the X-ray profile and direct imaging of atomic force microscopy (AFM) investigations clearly indicates the formation of an anomalous nematic phase possessing a two-dimensional (2D) tetragonal lattice with a large edge (ca. 59 ?) directed perpendicular to the director in the low-temperature nematic phase. One plausible model is proposed by an analogy of skyrmion lattice in which two types of cylinders formed from left- and right-handed twist-bend helices stack into a 2D tetragonal lattice, diminishing the inversion domain wall.

Smectic A-hexagonal columnar-B7 phase transition of acute-angle bent-core molecules

Acute-angle bent-shaped molecules comprising a 1,7-naphthalene central core, alkylthio terminal chains and long side wings comprising three phenyl rings connected by imine and ester linkages were synthesised. Their distinct mesomorphic properties and phase structures were revealed. Despite their acute shape, these molecules exhibited a polar switchable hexagonal columnar phase (Colh), banana B7 phases and calamitic smectic A (SmA) phase, enabling the first observation of SmA-Colh-B7 and Colh-B7 phase transition behaviours. The formation of a hexagonal columnar phase between the layered smectic A and B7 phases supports the proposed Colh phase model in which a tube-like assembly incorporating smectic layers generates hexagonal columns. Molecular packing in the optically uniaxial SmA phase was also discussed in terms of birefringence. Overall, the structural transformation of one-dimensional SmA layers into deformed hexagonal columnar and B7 phases was found to depend on the combined effects of molecular asymmetry, alkylthio terminal tails and the balance between flexible chain lengths and rigid mesogenic units.