Semiconductor Display Materials

1. Physicochemical Properties

• CAS Number: 118164-51-5
• Molecular Formula: C₂₃H₃₄F₂
• Molecular Weight: 348.51 g/mol
• Appearance: White crystalline solid.
• Purity: ≥98% (GC).
• Structure: A benzene ring with 1.2-difluoro substitution at the 4-position, connected to a trans-4′-pentyldicyclohexyl group.

Key Characteristics:

The pentyldicyclohexyl group contributes to hydrophobic behavior and liquid crystalline properties.

The difluoromethyl substitution enhances stability and electronic effects, influencing the material’s optical and electronic properties.

2. Synthesis Method

The compound is likely synthesized via Grignard reactions or similar methods. This involves reacting a dicyclohexyl-substituted aryl halide with a 1.2-difluoro-substituted aryl Grignard reagent. The synthesis may require:

• Protection/deprotection steps to manage reactive sites.
• Purification via chromatography or recrystallization to achieve high purity.

3. Applications

• Liquid Crystals: The dicyclohexyl structure and fluorine atoms make it a candidate for liquid crystal materials, where it could influence molecular alignment and optical properties.
• Organic Electronics: Potential use in organic light-emitting diodes (OLEDs) or photovoltaic cells due to its conjugated structure and electron-withdrawing fluorine atoms.
• Specialty Coatings: The hydrophobic nature and thermal stability may be useful in advanced surface coatings.

4. Safety Information

• Handling: Follow standard chemical safety protocols (e.g., use gloves, goggles, and fume hoods). Avoid skin contact and inhalation.
• Storage: Keep in a cool, dry place, away from oxidants and strong acids.
• Disposal: Consult local regulations for hazardous waste disposal.

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