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lophine

Structure via PubChem · Public domain (PubChem)

EntityQ11762376· pop 5· linked from 3 articles

Also known as 2,4,5-triphenylimidazole

Lophine is the organic compound with the formula . It is a derivative of imidazole wherein all three carbon atoms have phenyl groups as substituents. A white solid, this compound gave the first example of chemiluminescence when its basic solutions were exposed to air. Its chemiluminescence continues to attract attention.

Chemical data

Formula
C21H16N2
Molecular weight
296.4 g/mol
IUPAC name
2,4,5-triphenyl-1H-imidazole
SMILES
C1=CC=C(C=C1)C2=C(N=C(N2)C3=CC=CC=C3)C4=CC=CC=C4
InChIKey
RNIPJYFZGXJSDD-UHFFFAOYSA-N
XLogP
5
Polar surface area
28.7 Ų
H-bond donors
1
H-bond acceptors
1
Formal charge
0

via PubChem

Drug data · ChEMBL

Molecule type
Small molecule

via ChEMBL · EBI

Wikidata facts

Mass
296.131
Image
Lophine-crystals.jpg
Show 4 more facts
Commons category
Lophine
chemical formula
C₂₁H₁₆N₂
canonical SMILES
C1=CC=C(C=C1)C2=C(N=C(N2)C3=CC=CC=C3)C4=CC=CC=C4
melting point
276.0
Sources (2)

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Encyclopedic overview

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Contents
  • References

Lophine is the organic compound with the formula . It is a derivative of imidazole wherein all three carbon atoms have phenyl groups as substituents. A white solid, this compound gave the first example of chemiluminescence when its basic solutions were exposed to air. Its chemiluminescence continues to attract attention.

Lophine and its dihydro analogue amarine (meso-2,4,5-triphenyl-2-imidazoline) were discovered early in the history of organic chemistry (between 1841 and 1847), before the development of a structural theory of organic chemistry by Kekulé and Couper in the 1850s. Lophine is prepared by condensation of benzaldehyde, benzil, and ammonia.

Excerpted from Wikipedia’s “lophine” article, available under the CC BY-SA 4.0 licence.

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