Crystal structures of [(μ<sub>2</sub>-L1)dibromidodicopper(II)] dibromide and poly[[(μ<sub>2</sub>-L1)diiodidodicopper(I)]-di-μ-iodido-dicopper(I)], where L1 is 2,5,8,11,14,17-hexathia-[9.9](2,6,3,5)-pyrazinophane
Acta crystallographica. Section E, Crystallographic communications