1,8-Di-(2-imidazoyl)-2,7-diazoctadiene-1,7-(N,N',N'',N''')-Cu(II)diperchlorate 113634-10-9 Copper(2+), (N,N'-bis(1H-imidazol-2-ylmethylene)-1,4-butanediamine)-, (SP-4-2)-, diperclorate CuIM