Synthesising a molecular magnetic material

A method for synthesising a molecular magnetic material, comprising the steps of:

• producing a mixture comprising components:
• a paramagnetic reactant comprising a d-electron metal in a paramagnetic form selected from the group consisting of:
• Fe, Co, Mo, W and Mn,
• a diamagnetic reactant comprising a d-electron metal in a diamagnetic form, selected from the group consisting of:
• Fe, Co, Mo, W and Mn,
• at least one donor of cyanide (CN—) ligands being a separate compound and/or contained in the paramagnetic reactant and/or in the diamagnetic reactant,
• at least one cation having coordination sites for binding cyanide nitrogen atoms from the donor of cyanide ligands,
• except for a mixture of reactants simultaneously comprising as the paramagnetic reactant:
• [W(CN)6(NN)]− and as the diamagnetic reactant:
• [W(CN)6(NN)]−2, where NN is a bidentate NN-donor substituent,
• carrying out a reaction of the components of the mixture to form coordination bonds between the cation and cyanide nitrogen atoms derived from the donor of cyanide ligands, to obtain a polycyanide complex being the molecular magnetic material.