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1,2-dihydropyrene

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Identification
Molecular formula
C16H14
CAS number
1633-22-3
IUPAC name
1,2-dihydropyrene;4,5-dihydropyrene
State
State

1,2-Dihydropyrene is typically found as a solid at room temperature. Due to its aromatic structure, it maintains stability and remains solid under standard laboratory conditions.

Melting point (Celsius)
57.00
Melting point (Kelvin)
330.15
Boiling point (Celsius)
280.00
Boiling point (Kelvin)
553.15
General information
Molecular weight
202.28g/mol
Molar mass
202.2770g/mol
Density
1.1600g/cm3
Appearence

The compound 1,2-dihydropyrene often appears as a crystalline solid with a distinctive visual structure. It's typically a pale yellow solid, but its precise appearance can depend on the specific synthetic method and purity level of the sample. As a dihydropyrene, it has a unique framework that is relevant in photochemistry studies.

Comment on solubility

Solubility of 1,2-Dihydropyrene and 4,5-Dihydropyrene

The solubility of 1,2-dihydropyrene and 4,5-dihydropyrene presents a fascinating aspect of their chemical behavior. As polycyclic aromatic hydrocarbons (PAHs), these compounds exhibit some intriguing solubility characteristics:

  • Moderate Solubility: Both compounds are generally soluble in nonpolar organic solvents such as benzene and toluene but show limited solubility in polar solvents like water.
  • Molecular Structure Influence: The structure of these compounds affects solubility. The fused ring systems contribute to a higher degree of hydrophobicity.
  • Potential Applications: Their solubility properties make them pertinent in organic synthesis where solubility can influence reaction mechanisms and product yields.
  • Environmental Impact: Understanding their solubility is crucial since PAHs can accumulate in sediments and aquatic systems, posing environmental risks.

As a general guideline, it's important to remember that "like dissolves like." This principle highlights why 1,2-dihydropyrene and 4,5-dihydropyrene have limited interaction with water but find better compatibility with organic solvents.

In summary, while the solubility of these compounds is somewhat restricted, their behavior in different environments can provide valuable insights into their use and potential impact.

Interesting facts

Interesting Facts about 1,2-Dihydropyrene and 4,5-Dihydropyrene

1,2-Dihydropyrene and 4,5-dihydropyrene are intriguing members of the pyrene family, known for their unique structural features and reactivity. Here are some noteworthy points about these compounds:

  • Structural Isomers: Both compounds are structural isomers of pyrene, meaning they share the same molecular formula but have different arrangements of atoms. This gives rise to varying chemical properties and reactivity.
  • Hydrogenation Products: The dihydropyrenes can be considered hydrogenation products of pyrene, where double bonds in the pyrene structure have been reduced. This makes them a valuable topic of investigation for studying hydrogenation reactions.
  • Fluorescent Properties: Pyrene is well-known for its fluorescence, and while the dihydropyridines may exhibit altered fluorescence characteristics, they still retain some intriguing electronic properties that can be studied.
  • Research Potential: Their unique structures make these compounds relevant in organic synthesis and materials science. Scientists are exploring their potential applications in organic electronics, including light-emitting diodes (OLEDs) and photovoltaics.
  • Importance in Polycyclic Aromatic Hydrocarbons (PAHs): As derivatives of PAHs, the study of dihydropyrenes contributes to a deeper understanding of the chemistry surrounding aromatic compounds, which play a critical role in environmental science and toxicology.

In summary, 1,2-dihydropyrene and 4,5-dihydropyrene not only provide insight into structural organic chemistry but also open up pathways for practical applications in modern technology. As chemistry students or researchers, one can appreciate the rich tapestry of reactions and properties that these compounds lead us to explore.