"Teacher-student" (lektorstudent) Martin Amund Langaas Johansen has made several videos covering tricky concepts in organic and inorganic chemistry. These, among other achievements, won him the Hordvik Prize of the Norwegian Chemical Society.

A. Structure and Bonding
  • So you've heard about valence and oxidation state, but do you know the exact difference? Test your understanding with carbodiphosphoranes. Video  Further reading
  • Crystal field theory: A simple way to think about transition metal compounds. Video
  • Ligand field theory: An introduction to metal-ligand orbital interactions. Video
  • Metal-metal multiple bonds: Quadruple bonds and δ bonds. Video  Further reading

B. Symmetry and stereochemistry

C. General

  • The arsenic biogeochemical cycle: As biomethylation. Video