A diamine copper(I) complex stabilized in situ within the ferrierite framework. Catalytic properties

The copper(I) complex [Cu(NH3)(2)](+) has been formed in situ during the fe rrierite framework constitution. The structure of the material has been det ermined by single-crystal X-ray diffraction. The obtained formula is [Cu-0. 34(NH3)(0.68)](0.34+)(Si35.66Al0.34O72)(0.34-.)(C3H9N)(2) (NH3)(1.6). Along the 10-ring channel is housed a row of linear [Cu(NH3)(2)](+) complex. The copper atom is situated in an inversion center and bonded to two NH3 molec ules at 2.21 Angstrom. The compound that is white and diamagnetic as synthe sized becomes blue and paramagnetic after heating to 800 degreesC and cooli ng to room temperature. The oxidation of Cu(I) to Cu(II) has been corrobora ted by magnetic susceptibility measurements. This material behaves as a goo d catalyst in the cyclopropanation of alkenes and sulfide oxidation reactio ns. It can be recovered and reused, retaining most of its catalytic activit y.