Cuprophilicity? a rare example of a ligand-unsupported CuI–CuI interaction

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Ulrich Siemeling, Udo Vorfeld, Beate Neumann and Hans-Georg Stammler


Abstract

The reaction of 1,1′-bis(2-pyridyl)octamethylferrocene (L) with [Cu(NCMe)4]BF4 in CH2Cl2 affords [CuL][CuCl2], the structure of which is determined by a single-crystal X-ray diffraction study; this reveals a remarkably short ligand-unsupported CuI–CuI contact of 281.0(2) pm.


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