Tetra­kis(tert-butyl isocyanide)copper(I) chloride monohydrate

The title compound, [Cu(C₅H₉N)₄]Cl·H₂O, was obtained from the reaction of copper(II) chloride hydrate with KCN in the presence of two equivalents of tert-butyl­isocyanide. The reaction proceeds via the reduction of copper and the formation of (CN)₂. The compound shows a tetra­hedrally surrounded Cu^I centre, with the Cu^I ion and the water O atom being situated on crystallographic twofold axes. The crystal structure contains infinite chains of alternating solvent mol­ecules and Cl⁻ anions, with additional weak C—H...Cl or C—H...O inter­actions with the [Cu(CN^tBu)₄] cations.

Tetra­kis(tert-butyl isocyanide-2κC)dichloro-1κCl,3κCl-di-μ-cyano-1κN:2κC;2κC:3κN-bis­[1,3(η⁴)-cyclo­octa-1,5-diene]dirhodium(I)ruthenium(II)

The title compound, [Rh₂Ru(CN)₂Cl₂(C₈H₁₂)₂(C₅H₉N)₄], was obtained from the reaction of the chloro­(1,5-cyclo­octa­diene)rhodium(I) dimer with trans-dicyano­tetra­(tert-butyl isocyanide)ruthenium(II) by cleavage of the chloro bridges in the dimeric rhodium starting complex. The mol­ecular structure shows the Ru atom in a nearly ideal octa­hedral coordination geometry, whereas the Rh atoms are situated in square-planar ligand environments. The central ruthenium ion is located on a crystallographic twofold axis. The crystal structure is realized by infinite chains of the trinuclear complex units which are connected by C—H...Cl inter­actions. These chains are further linked by another C—H...Cl inter­action to produce the observed three-dimensional structure.