🔬 Discovery

Organic free radicals (Gomberg)

Radicales libres orgánicos (trifenilmetilo)

Date
1900 · confidence high
Place
University of Michigan, Ann Arbor, United States
Credited to
Moses Gomberg
People
👤 Moses Gomberg1866–1947
Field
Matter & energy

What was discovered

Gomberg obtains the triphenylmethyl radical, the first species with a stable trivalent carbon, demonstrating the existence of intermediates with unpaired electrons. The basis of radical polymerisation, combustion and atmospheric chemistry.

What it led to

  • Radical polymerisation
  • Chemistry of combustion and the atmosphere
  • Biology of free radicals and antioxidants
🕸️ View in the graph

Built on

Made possible

  • vinyl polymers (PVC, polystyrene, PMMA)

📄 Original publication

AN INSTANCE OF TRIVALENT CARBON: TRIPHENYLMETHYL.M. Gomberg · Journal of the American Chemical Society · 1900

Links