Abstract:

This paper characterizes the structure of metal complex DMY-Cu（Ⅱ）after its preparation through UV spectroscopy, IR spectroscopy, elemental analysis and thermogravimetry-differential thermal analysis (TG-DTA). The results indicate that DMY and Cu²⁺ ion are easy to form complexes whose composition is ［C₁₅H₁₀O₈Cu］·H₂O. It further studies the scavenging capacity of DMY-Cu（Ⅱ）on superoxide anion radical (O₂^-·)，hydroxyl radical (OH·)and DPPH radical（DPPH·）. The finding of the investigation is that the complex DMY-Cu(Ⅱ) has a great cleaning effect on OH·, O₂^-· and DPPH·, which outweighs the DMY ligand.

Key words: complex of DMY-Cu (Ⅱ); hydroxyl radical; superoxide anion radical; DPPH radical