Molybdenum compounds: molybdenum disulphide

molybdenum symbol icon

The molybdenum in molybdenum disulphide formally is in the oxidation state 4.

Crystal structure of molybdenum disulphide

Molybdenum disulphide

  • Formula as often written: MoS2
  • Hill system formula: Mo1S2
  • CAS registry number: [1317-33-5]
  • Formula weight: 160.072
  • Class: sulphide

Synonyms

  • molybdenum disulphide
  • molybdenum(IV) sulphide
  • molybdenum disulfide
  • molybdenum sulfide
  • molybdenum sulphide
  • molybdenum(IV) sulfide

Physical properties

  • Colour: black
  • Appearance: crystalline solid
  • Melting point: 1185°C; 2375°C
  • Boiling point: 450°C
  • Density: 5060 kg m-3; 4800 kg m-3

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Element analysis

Element percentages for the elements in molybdenum disulphide
Element %
Mo 59.94
S 40.06

Synthesis

Not available

Solid state structure

  • Geometry of molybdenum:
  • Prototypical structure:

Crystal structure of molybdenum disulphide

Isotope pattern

What follows is the calculated isotope pattern for the MoS2 unit with the most intense ion set to 100%.

Formula: Mo1S2

mass  %
156  57.5 _____________________________
157 0.9
158 41.0 ____________________
159 62.3 _______________________________
160 69.0 __________________________________
161 43.5 ______________________
162 100.0 __________________________________________________
163 5.0 __
164 45.8 _______________________
165 0.7
166 3.5 __
167 0.0
168 0.1

References

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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molybdenum atomic number