A copper(I) coordination polymer containing an adamantane P–N cage ligand

Abstract

The tetra­dentate non-chelating ligand 2,4,6,8,9,10-hexa­methyl-2,4,6,8,9,10-hexa­aza-1,3,5,7-tetra­phosphaadamantane, P4(NCH3)6, reacts with one equivalent of cuprous iodide to yield the title coordination polymer, catena-poly[[iodo­copper(I)]-μ-2,4,6,8,9,10-hexa­methyl-2,4,6,8,9,10-hexa­aza-1,3,5,7-tetra­phosphaadamantane-κ2P1:P3], [CuI(C6H18N6P4)]n. The polymer is linked through P—Cu coordination at two vertices of the cage. The CuI ions have a trigonal–planar geometry, coordinated by P atoms from two different ligands and the iodide. This structure represents the first crystallographically characterized coordination compound of this cage ligand.