title: Vanadium oxydichloride
text: # Vanadium oxydichloride
  
  Vanadium oxydichloride is the inorganic compound with the formula $VOCl_2.$ One of several oxychlorides of vanadium, it is a hygroscopic green solid. It is prepared by comproportionation of vanadium trichloride and vanadium(V) oxides:
  
      $V_2O_5$ + $VOCl_3$ + 3 $VCl_3$ → 6 $VOCl_2$
  
  As verified by X-ray crystallography, vanadium oxydichloride adopts a layered structure, featuring octahedral vanadium centers linked by doubly bridging oxide and chloride ligands.
  
  From $VOCl_2,$ various blue or green-colored oxotri- and oxotetrachloride salts can be prepared. Examples include $N(CH_3)_4VOCl_3$ and the pyridinium derivative $(C_5H_5NH)_2VOCl_4.$
  
  