Crystal structure of the coordination polymer catena -poly[[[(acetonitrile-κ N )copper(I)]-μ 3 -1,3-dithiolane-κ 3 S : S : S ′] hexafluoridophosphate]

International audienceThe polymeric title compound, [Cu2(C2H3N)2(C3H6S2)2](PF6)2, represents an example of a one-dimensional coordination polymer resulting from the reaction of [Cu(MeCN)4][PF6] with 1,3-dithiolane. The cationic one-dimensional ribbon consists of two copper(I) centers each ligated by one acetonitrile molecule and interconnected through two bridging 1,3-dithiolane ligands. One S-donor site of each ligand is κ 1-bound to Cu, whereas the second S atom acts as a four-electron donor, bridging two Cu atoms in a κ 4-bonding mode. The positive charge of each copper cation is compensated for by a hexafluoridophosphate counter-ion. In the crystal, the polymer chains are linked by a series of C-H⋯F hydrogen bonds, forming a supramolecular framework