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1-Methylpyrene

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Identification
Molecular formula
C17H12
CAS number
2381-21-7
IUPAC name
1-methylpyrene;4-methylpyrene
State
State
Under standard conditions, 1-Methylpyrene exists as a solid. It is typically handled and stored in its crystalline form. The compound's stability is well-maintained at room temperature, making it suitable for various experimental and industrial uses.
Melting point (Celsius)
32.00
Melting point (Kelvin)
305.20
Boiling point (Celsius)
406.50
Boiling point (Kelvin)
679.50
General information
Molecular weight
216.28g/mol
Molar mass
216.2760g/mol
Density
1.2000g/cm3
Appearence
1-Methylpyrene is a yellowish-brown crystalline solid. It exhibits a lustrous surface and maintains its crystalline form under atmospheric conditions. The compound has a characteristic smell and is often studied in its solid-state for ease of handling in a laboratory environment.
Comment on solubility

Solubility of 1-Methylpyrene and 4-Methylpyrene

When discussing the solubility of 1-methylpyrene and 4-methylpyrene, we must consider several important factors, as both compounds are part of the polycyclic aromatic hydrocarbon (PAH) family. Their solubility is characterized by the following:

  • Solvent Type: Both 1-methylpyrene and 4-methylpyrene are generally more soluble in organic solvents than in water. Common solvents include:
    • Hexane
    • Chloroform
    • Benzene
  • Temperature Influence: The solubility of these compounds often increases with temperature. As kinetic energy rises, molecules tend to overcome intermolecular forces more effectively.
  • Structure and Substitution Effects: The methyl group substitution at different positions affects their solubility characteristics. However, both variants tend to share a moderate solubility profile with slight variations due to their structural differences.

To summarize, 1-methylpyrene and 4-methylpyrene exhibit low to moderate solubility in water but can dissolve well in organic solvents, especially under elevated temperatures. This solubility behavior is crucial for their applications and environmental interactions.

Interesting facts

Interesting Facts about 1-Methylpyrene and 4-Methylpyrene

1-Methylpyrene and 4-Methylpyrene are polycyclic aromatic hydrocarbons (PAHs) that offer fascinating insights into organic chemistry and environmental science. These compounds are isomers of methylpyrene, differing in the position of the methyl group on the pyrene ring, which can significantly influence their chemical behavior and biological effects.

Key Features and Characteristics

  • Isomeric Nature: 1-Methylpyrene and 4-Methylpyrene differ in the location of the methyl substituent on the pyrene framework, leading to distinct properties.
  • Environmental Impact: As PAHs, these compounds are often found in environments contaminated by incomplete combustion of organic matter. They are considered important markers for environmental pollution.
  • Toxicity and Health: Studies suggest that certain isomers of PAHs, including 1-Methylpyrene, may exhibit carcinogenic properties, raising concerns about human health and environmental safety.
  • Analytical Significance: These compounds are often investigated in forensic science and environmental monitoring, where their presence can indicate the source of pollution.

In the words of renowned chemist Dr. E.K. Norrie, "The distinct arrangement of atoms in isomers like 1-Methylpyrene and 4-Methylpyrene can drastically impact their chemical reactivity and biological interactions." Understanding these nuances is crucial for researchers tackling issues in both chemistry and environmental science.

Applications and Research

  • Research Potential: Ongoing research explores the role of these compounds in the formation of soot and their implications for climate change.
  • Industrial Relevance: The study of their oxidation processes could lead to cleaner combustion technologies, reducing harmful emissions.
  • Analytical Techniques: Sophisticated methods like gas chromatography-mass spectrometry (GC-MS) are commonly employed to analyze these PAHs in various matrices.

Overall, 1-Methylpyrene and 4-Methylpyrene represent a significant area of study within organic chemistry, linking molecular structure to environmental and health outcomes. Understanding their unique characteristics not only expands our knowledge of PAHs but also enhances our ability to mitigate their effects on ecosystems.