4-Isopropyl-4'-methyldiphenyliodonium tetrakis(pentafluorophenyl)borate
[CAS# 178233-72-2]

Identification

• Classification: Organic raw materials >> Organoboron compounds
• Name: 4-Isopropyl-4'-methyldiphenyliodonium tetrakis(pentafluorophenyl)borate
• Molecular Formula: C₁₆H₁₈I.C₂₄BF₂₀
• Molecular Weight: 1016.26
• CAS Registry Number: 178233-72-2
• EC Number: 672-712-5
• SMILES: [B-](C1=C(C(=C(C(=C1F)F)F)F)F)(C2=C(C(=C(C(=C2F)F)F)F)F)(C3=C(C(=C(C(=C3F)F)F)F)F)C4=C(C(=C(C(=C4F)F)F)F)F.CC1=CC=C(C=C1)[I+]C2=CC=C(C=C2)C(C)C

Properties

• Melting point: 133 °C

Safety Data

• Hazard Symbols: GHS08;GHS07;GHS09 Warning
• Risk Statements: H312-H302-H373-H400-H410
• Safety Statements: P260-P264-P270-P273-P280-P301+P317-P302+P352-P317-P319-P321-P330-P362+P364-P391-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute toxicity	Acute Tox.	4	H302
Acute toxicity	Acute Tox.	4	H312
Specific target organ toxicity - repeated exposure	STOT RE	2	H372
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Specific target organ toxicity - repeated exposure	STOT RE	2	H373

Discovery and Applications

4-Isopropyl-4'-methyldiphenyliodonium tetrakis(pentafluorophenyl)borate is a specialized chemical compound notable for its use in advanced materials and photoinitiation applications. This compound belongs to the class of diphenyliodonium salts, which are widely recognized for their utility as photoinitiators in polymerization reactions.

The discovery of 4-Isopropyl-4'-methyldiphenyliodonium tetrakis(pentafluorophenyl)borate can be traced back to the growing need for effective photoinitiators in the development of high-performance materials. Photoinitiators are crucial in the polymerization process, where they generate free radicals upon exposure to light, initiating the polymerization of monomers. This process is fundamental in the production of various materials, including coatings, adhesives, and dental materials.

The synthesis of 4-Isopropyl-4'-methyldiphenyliodonium tetrakis(pentafluorophenyl)borate involves the reaction of diphenyliodonium salts with tetrakis(pentafluorophenyl)borate. The isopropyl and methyl groups attached to the diphenyliodonium moiety enhance the compound's stability and reactivity, making it an effective photoinitiator. The presence of the tetrakis(pentafluorophenyl)borate anion contributes to the overall electronic properties of the compound, optimizing its performance in photoinitiation processes.

In practical applications, 4-Isopropyl-4'-methyldiphenyliodonium tetrakis(pentafluorophenyl)borate is used in UV-curable coatings and adhesives. These coatings are employed in various industries, including automotive, electronics, and packaging, where rapid curing and high durability are essential. The compound's ability to initiate polymerization efficiently under UV light leads to the formation of robust and high-quality coatings.

Additionally, this compound is utilized in the development of advanced materials that require precise control over polymerization kinetics. Its high reactivity and stability make it suitable for applications where a fast and controlled polymerization is necessary. This includes applications in the production of dental materials and high-performance polymers.

Overall, 4-Isopropyl-4'-methyldiphenyliodonium tetrakis(pentafluorophenyl)borate is a significant compound in the field of photoinitiation and materials science. Its role in enhancing the efficiency and performance of polymerization processes underscores its importance in the development of advanced materials and technologies.

References

2012. Electron-Beam Sensitivity and Patterning of an Aqueous-Develop, Epoxy-Based Polynorbornene Dielectric Material. Journal of Electronic Materials.
DOI: 10.1007/s11664-012-1961-5