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Quinone

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Identification
Molecular formula
C6H4O2
CAS number
106-51-4
IUPAC name
4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one
State
State

At room temperature, quinone is a solid. The solid form is typically stable and retains its bright yellow color if stored properly away from light and heat.

Melting point (Celsius)
115.00
Melting point (Kelvin)
388.00
Boiling point (Celsius)
202.00
Boiling point (Kelvin)
475.00
General information
Molecular weight
108.09g/mol
Molar mass
108.0940g/mol
Density
1.3180g/cm3
Appearence

Quinone appears as a bright yellow crystalline solid. It has a pungent odor and tends to darken upon exposure to light. The crystals may appear needle-like under microscopic examination.

Comment on solubility

Solubility of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one

The solubility of 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one can be quite intricate due to its unique structure. Generally speaking, the solubility of organic compounds is influenced by several factors, including:

  • Polarity: The presence of polar functional groups can enhance solubility in polar solvents, while non-polar characteristics may favor solubility in non-polar solvents.
  • Molecular size: Larger molecules often exhibit reduced solubility due to increased van der Waals forces.
  • Hydrogen bonding: Ability to form hydrogen bonds can greatly affect solubility in water and other polar solvents.

In the case of this specific compound, here are some critical notes:

  1. The compound contains multiple double bonds which may influence solubility depending on the solvent.
  2. Due to its aromatic nature, it is likely to have some degree of solubility in organic solvents like ethanol or acetone.
  3. However, it may show limited solubility in water because of its overall hydrophobic characteristics.

Essentially, solubility can be summarized with the phrase: "Like dissolves like." This means that polar solvents dissolve polar solutes, while non-polar solvents are effective with non-polar solutes. Hence, understanding the molecular structure of the compound is paramount when predicting its solubility behavior.

Interesting facts

Interesting Facts about 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one

This fascinating compound, 4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one, belongs to a class of organic compounds known for their unique structural characteristics and reactivity. Here are some noteworthy points about this compound:

  • Conjugated Systems: The structure features a conjugated diene system, which is responsible for its interesting optical and electronic properties. The alternating double bonds enhance charge delocalization, significantly affecting its chemical behavior.
  • Potential Applications: Compounds with similar structures are often explored in various fields, including materials science and pharmaceuticals. They may serve as precursors to dyes, pigments, or medicinal compounds due to their reactive sites and unique properties.
  • Resonance Stability: The compound displays significant resonance stability, which can lead to diverse chemical reactions. This stability can influence the reactivity patterns, making it an interesting subject for study in organic reaction mechanisms.

In the realm of synthetic organic chemistry, compounds like this one offer countless opportunities for innovation. As one researcher puts it, "The beauty of organic synthesis lies in the ability to create new molecules with distinct properties that could lead to groundbreaking discoveries."
Whether for theoretical research or practical applications, exploring compounds with such intricate structures can inspire new ideas and approaches within the scientific community.

Synonyms
Diphenoquinone
494-72-4
4,4'-Biphenyldione
4,4'-Diphenoquinone
[1,1'-BI(CYCLOHEXYLIDENE)]-2,2',5,5'-TETRAENE-4,4'-DIONE
[Bi-2,5-cyclohexadien-1-ylidene]-4,4'-dione
4-(4-oxocyclohexa-2,5-dien-1-ylidene)cyclohexa-2,5-dien-1-one
2,5-Cyclohexadien-1-one, 4-(4-oxo-2,5-cyclohexadien-1-ylidene)-
(BI-2,5-CYCLOHEXADIEN-1-YLIDENE)-4,4'-DIONE
BRN 2043852
Diphenochinon
4,4'-Diphenoquinone(dq)
4-07-00-02472 (Beilstein Handbook Reference)
SCHEMBL2751602
DTXSID00197787
MFCD00859193
AKOS006273970
G66497