75867-45-7

Usage

Physical state

Colorless, flammable liquid

Odor

Strong

Solubility

Soluble in organic solvents

Uses

a. Cross-linking agent in epoxy resin production
b. Building block in organic compound and pharmaceutical synthesis

Applications

a. Adhesives
b. Coatings
c. Electronic components

Reactivity

Highly reactive

Safety concerns

Health risks and environmental hazards if not properly managed

Upstream product

• 1074-24-4 2,5-dibromo-p-xylene 
• 106-42-3 para-xylene 
• 1124-08-9 2,5-diiodo-p-xylene 
• 75867-43-5 1,4-bis((trimethylsilyl)ethynyl)-2,5-dimethylbenzene 

Downstream Products

• 1146301-59-8 1,4-[RuCl(CO)(PMe₃)3CH=CH]2C₆H₂-2,5-(CH₃)2 

Relevant academic research and scientific papers

Synthesis and photophysics of new pyridyl end-capped 3D-dithia[3.3]paracyclophane-based Janus tectons: Surface-confined self-assembly of their model pedestal on HOPG

Surface-confined supramolecular self-assembly is currently a promising strategy to create well-organised 2D-networks on conducting surfaces. However, using such substrates tends to quench any electronic properties of the adsorbed molecules. In this context, new pyridyl end-capped 3D-dithia[3.3]paracyclophane-based molecules were designed, along with their model compound (pedestal), with the objective of self-assembling these tectons on any substrate. The synthesis of these new molecules was not straightforward and is consequently described in detail. Once the materials were successfully isolated, their optoelectronic properties were investigated to study potential non-covalent interactions: through pH-dependent absorption and emission measurements, and infra-red spectrometry. We evidenced that both ionic bonding and coordination bonding are compatible with the molecules design. Finally, preliminary scanning tunneling microscopy (STM) studies were performed to study the supramolecular self-assembly properties of the model lower-deck (pedestal) on highly oriented pyrolytic graphite (HOPG): we observed a quasi-square lattice of self-assembled 2D-networks that appear to form independently of the underlying HOPG lattice.

Triggering the dynamics of a carbazole-: P -[phenylene-diethynyl]-xylene rotor through a mechanically induced phase transition

A new rotor exhibits rich solvatomorphism behavior with eight X-ray structures obtained. A heterogeneous solid obtained by mechanical stress exhibited a dominant isotropic 2H line shape at high temperatures. The motion occurs only in the amorph