[Cu(NCCH3)6][B(C6F5)(4)](2) call be heterogenized by ion exchange on NaAlMCM-41 and NaAlMCM-48. In the latter case, the observed loading is twice as high as in the first case. [Cu(NCCH3)(6)][B(C6F5)(4)](2) is applicable both in homogeneous and hetrogeneou