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The title complex, [Cu(BF4)2(C7H16O2S2)2]n, is isostructural with the perchlorate analog [Li et al. (2005). Cryst. Growth Des. 5, 1919–1932], both having a double-bridging one-dimensional chain structure containing sixteen-membered macrocyclic units. Each Cu atom lies on a crystallographic inversion center [ABSTRACT FROM AUTHOR]

The title complex, [HgBr2(C19H24S2)] n, has a single-chain structure in which adjacent HgBr2 units are linked by bridging ligands. The HgII centre has a distorted tetra­hedral coordination environment formed by two Br− anions and two S atoms from distinct ligands. [ABSTRACT FROM AUTHOR]

In the structure of the title compound, [Ni2(N3)4(C5H5N)4]n, neutral chains of NiII atoms are bridged alternately by double end-on and double end-to-end azide bridges. Each NiII center is located on a crystallographic general position and in a slightly distorted octahedral coordination environment with two pyridine ligands in the trans positions. Both end-on and end-to-end double azide bridges become equivalent because of the inversion centers lying between each pair of adjacent NiII atoms. In the chain, the Ni⋯Ni separations across the end-on and end-to-end azide bridges are 3.236 (4) and 4.975 (4) Å, respectively, and the end-on azide bridging NiNNi angle is 100.8 (2)°. [ABSTRACT FROM AUTHOR]