in water Dissoln. of Ni wire in aq. HCl at about 50°C using a piece of Pt in contact with the Ni (acting as cathode for better soln. of Ni).; Placement of NiCl2 in a quartz boat, vaporisation by heating to about 600°C, seeding of vapor in about 4 atm of Ar, expanding through nozzle (250μm hole).;

in neat (no solvent, solid phase) mixt. of metal (tenfold excess) and AgCl heated in Ar (400 Torr) until react. was complete; cooled, evacuated, co-condensed with solid matrix (N2 or Ar);