A Homoleptic Copper(II)−Thiocyanato Linear Chain

Under conditions of excess Cu(II) ions, it is possible to synthesize a novel tetraphenylarsonium copper(II) thiocyanato anion salt, possessing the stoichiometry [AsPh4][Cu(SCN)3] 1. Furthermore, the crystal structure of 1 revealed the complex salt to be a rare example of a metal−thiocyanato one-dimensional chain compound, containing equatorial−equatorial copper−thiocyanato bridges. Crystal structure data (297 K) are monoclinic, P2(1)/c, a = 13.838(3) Å, b = 9.679(2) Å, c = 21.623(5) Å, and Z = 4. Antiferromagnetic exchange through the equatorial−equatorial bridge occurs with −J = 90 cm-1.