NOVEL HEPTA-COBALT AMINO-ALKOXIDE COMPLEXES AND PROCESS FOR PREPARING THEREOF

摘要

A cobalt precursor material, which is existent in very stable black solid state and is used to prepare cobalt and a cobalt oxide nano-material and an alloy including the cobalt, is provided to prepare a cobalt and a cobalt oxide thin films through various deposition methods. A cobalt amino alkoxide compound is represented by the formula(1) of Co7[O-A-NR^1R^2]6(H2O)3(OH)6O6, wherein A is linear or branched C2-4 alkylene substituted or unsubstituted by halogen; and each R^1 and R^2 is independently linear or branched C1-4 alkyl substituted or unsubstituted by halogen. A method for preparing the cobalt amino alkoxide compound of the formula(1) comprises a step of reacting a cobalt compound represented by the formula(3) of [Co(NH3)5X]X2 with an amino alkoxide alkali metal salt compound represented by the formula(4) of MO-A-NR^1R^2, wherein X is Cl, Br or I; M is Li, Na, or K; and A, each R^1 and R^2 is independently linear or branched C1-4 alkyl substituted or unsubstituted by halogen. Further, the method additionally comprises a step of performing work-up in air.