Pavel Karen

Image of Pavel Karen
Norwegian version of this page
Phone +47 22855590
Room ØU 82
Visiting address Sem Sælands vei 26 0371 Oslo
Postal address Postboks 1033 0315 Oslo

Academic interests

  • Inorganic chemistry and crystallography.
  • Metal oxides with fractional valences.
  • Less common combinations of properties: towards halfmetallic ferromagnet.
  • Relationship between structure and phase transitions into valence-controlled states: temperatures of valence mixing, of superconductivity.
  • Less common compositions: carbides-oxides as pseudonitrides, nitrides-fluorides as pseudooxides.
  • Oxide materials with less-common properties: high conductivity, photocatalysis.

Academic interests, methods

  • Syntheses of new compounds at less-common temperature- and redox conditions.
  • Precise valence control in solid oxides of transition metals.
  • Structure determination from synchrotron x-ray and neutron diffraction data.
  • Mössbauer spectroscopy of valence-, spin-, and coordination states (in collaboration).
  • Magnetic, electric and thermal properties of inorganic solids (in collaboration).



  • Positions related to University of Oslo: Professor, lecturer, researcher.
  • Earlier positions: lecturer, University of Chemical Technology, Prague.


  • Textbook of the year, 1987 (University of Chemical Technology, Prague)
  • First place in national Chemistry Olympiad in Prague, 1966

Scientific service

  • IUPAC, associated member in Division II, Inorganic Chemistry
  • IUPAC, member of the Interdivisional Committee on Terminology, Nomenclature and Symbols
  • International Centre for Diffraction Data, a member
  • Norwegian Chemical Society, member of nomenclature committee


An extensive collaboration in Finland and USA


IUPAC project Toward a Comprehensive Definition of Oxidation State

IUPAC project Toward a Comprehensive Definition of Valence

Tags: Inorganic chemistry, Crystallography, Mixed valence
Published Nov. 11, 2010 9:00 AM - Last modified Jan. 27, 2020 9:38 AM