Tailoring the substituted position for high-efficiency charge transport ability and strong blue solid-state emission in naphthalene derivative

Herein, a novel organic material with high-efficiency charge transport ability and strong blue solid-state emission, referred to 1,5-di(anthracen-2-yl)naphthalene was designed and synthesized. Different from the common 2,6-position substituted molecules with...

Non-classical Temperature-dependent Phase Sequence: Long-lived Metastable Piezoelectric Helical Columnar Liquid Crystalline Polymorph

Polymorphism is an intriguing research topic, because multiple functionalities can be accessed from a single material. Herein, we report the unusual polymorphic behavior of a liquid crystalline (LC) naphthalene derivative...

Synthesis of Decaarylanthracene with Nine Different Substituents

A synthesis of decaarylanthracene with nine different substituents has been accomplished by a coupling/ring-transformation strategy. The oxidation of tetraarylthiophenes with four different substituents to the corresponding thiophene <i>S</i>-oxides, and a [4+2] cycloaddition with a double benzyne precursor afforded a multiply arylated naphthalene derivative. Subsequently, the naphthalene derivative was converted into a naphthalyne, and then a [4+2] cycloaddition of another thiophene <i>S</i>-oxide provided decaarylanthracenes with nine different aryl groups.

Synthesis of Decaarylanthracene with Nine Different Substituents

A synthesis of decaarylanthracene with nine different substituents has been accomplished by a coupling/ring-transformation strategy. The oxidation of tetraarylthiophenes with four different substituents to the corresponding thiophene <i>S</i>-oxides, and a [4+2] cycloaddition with a double benzyne precursor afforded a multiply arylated naphthalene derivative. Subsequently, the naphthalene derivative was converted into a naphthalyne, and then a [4+2] cycloaddition of another thiophene <i>S</i>-oxide provided decaarylanthracenes with nine different aryl groups.

Design, synthesis, and characterization of 6-[(trimethyl)silylethynyl]naphthalene-2-ethene: a new precursor for the preparation of high-refractive-index organic materials

A new polymerizable naphthalene derivative has been designed, prepared, and characterized by 1H, 13C NMR, and MS. The new monomer synthesis has successfully been accomplished from a cheap commercially available raw material, in only four steps with good yields. The four steps can be easily scaled up for manufacturing purposes. It is anticipated that the new precursor can be very useful in the preparation of valuable materials with high refractive index for numerous opto-electronic applications.

1,4-Bis(4-methoxyphenyl)naphthalene

The title naphthalene derivative, C24H20O2, features 4-methyoxy-substituted benzene rings in the 1 and 4 positions of the naphthalene ring system. There are two crystallographically independent molecules (A and B) in asymmetric unit. The independent molecules have very similar conformations in which the naphthalene ring systems are only slightly bent, exhibiting dihedral angles between the constituent benzene rings of 3.76 (15) and 3.39 (15)° for A and B, respectively. The pendent 4-methyoxybenzene rings are splayed out of the plane through the naphthalene ring system to which they are connected [range of dihedral angles = 59.63 (13) to 67.09 (13)°]. In the crystal, the molecular packing is consolidated by intermolecular C—H...π interactions, leading to supramolecular chains along the b axis. The chains assemble without directional interactions between them.