Reaction of bidentate m-amino benzoic acid (mABAH) with metal salts of (Cu(II), Pb(II), Zn(II), Mn(II), Co(II), Cd(II), Ni(II)) yields the new complexes of type [M(mABA)2] (where M = Cu(II), Pb(II) or Zn(II), Mn(II), ...