Crystal structure of the two-dimensional coordination polymer poly[di-mu-bromido-bis(mu-tetranydrothiopnene)dicopper(I)]

The polymeric title compound, [Cu2Br2(C4H8S)(2)](n), CP1, represents an example of a two-dimensional coordination polymer resulting from reaction of CuBr with tetrahydrothiophene (THT) in MeCN solution. The two-dimensional layers consist of two different types of rhomboid-shaped dinuclear Cu(mu(2)-Br)(2) Cu secondary building units (SBUs); one with a quite loose Cu center dot center dot center dot Cu separation of 3.3348 (10) angstrom and a second one with a much closer intermetallic contact of A 2.9044 (9) angstrom. These SBUs are interconnected through bridging THT ligands, in which the S atom acts as a four-electron donor bridging each Cu(mu(2)-Br)(2)Cu unit in a mu(2)-bonding mode. In the crystal, the layers are linked by very weak C-H center dot center dot center dot center dot Br hydrogen bonds with H center dot center dot center dot Br distances of 2.95 angstrom, thus giving rise to a three-dimensional supramolecular network.