In recent years, the development of metal oxide nanocrystals has been intensively pursued because of their useful applications in catalysis, energy storage, magnetic data storage, sensors, and ferrofluids. In this communication we wish to present nanoparticles based on heteronuclears salicylates complexes. The nanocrystals were synthetized in a three-neck flask equipped with condenser, magnetic stirrer and heating mantle. In a typical procedure, a mixture of heteronuclears salicylates complexes {[FeSr2(Sal)2(SalH)2(NO3)(DMAA)4]}n1, [Fe2CoO(SalH)6(CH3OH)2(H2O)]·DMFA·2,5H2O2, {Fe3O}) fine powder, oleic acid and 1-octadecene was heated under stiring to 320oC, under an argon atmosphere. The TEM micrographs of these nanocrystals demonstrate the high quality The figures 1a and 1b shows TEM images of nanoparticles of monodisperse FeSr2 and Fe3O evidence obtained microscope JEM - 200CX. It can be seen that the nanoparticles FeSr2 and Fe3O have a regular cubic form. In the case of the sample FeSr2, nanoparticle size, to a great extent, are homogeneous, the side of the cube in the art (8-10) nm. The sample size of the nanoparticles is homogeneous Fe3O (2-10) nm, particle size predominantly in the range (2-4) nm.figureFig.1. TEM micrograph of the nanoparticle FeSr2 (a) and Fe3O (b)