Neodymium compounds: neodymium diiodide

neodymium symbol icon

The neodymium in neodymium diiodide formally is in the oxidation state 2.

Crystal structure of neodymium diiodide

Neodymium diiodide

  • Formula as often written: NdI2
  • Hill system formula: I2Nd1
  • CAS registry number: [61393-36-0]
  • Formula weight: 398.049
  • Class: iodide


  • neodymium diiodide
  • neodymium(II) iodide
  • neodymium iodide

Physical properties

  • Colour: violet
  • Appearance:
  • Melting point: 562°C
  • Boiling point:
  • Density:


Coming soon...

Element analysis

Element percentages for the elements in neodymium diiodide
Element %
I 63.76
Nd 36.24


Not available

Solid state structure

  • Geometry of neodymium: mixed 8-, 7-coordinate: (SiBr2 structure)
  • Prototypical structure:

Crystal structure of neodymium diiodide

Isotope pattern

What follows is the calculated isotope pattern for the NdI2 unit with the most intense ion set to 100%.

Formula: Nd1I2

mass  %
396 100.0 __________________________________________________
397 44.9 ______________________
398 87.7 ____________________________________________
399 30.6 _______________
400 63.4 ________________________________
401 0.0
402 21.2 ___________
403 0.0
404 20.8 __________


The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following.

  • R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
  • N.N. Greenwood and A. Earnshaw in Chemistry of the Elements, 2nd edition, Butterworth, UK, 1997.
  • F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
  • A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
  • R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
  • A.R.West in Basic solid state chemistry Chemistry, John Wiley & Sons, 1999.
  • A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
  • J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
  • D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
  • J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
  • J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.

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neodymium atomic number