Facile synthesis of novel, known, and low-valent transition metal phosphates via reductive phosphatization

Novel and known low-valent transition metal phosphates (TMPs) are accessible via a novel and facile pathway. The method allows syntheses of TMPs also with reduced oxidation states. The key feature of the new route is the reductive character of a hypophosphite salt melt, which acts as reaction medium and enables directing the oxidation state of the transition metal.