Abstract
AbstractIn the ternary system Se/Bi/Cl a new polycation containing phase besides the already known Se4[Bi4Cl14], Se8[Bi4Cl14], and Se10[Bi5Cl17] was discovered. Red, transparent, plate shaped crystals of Se10[Bi4Cl14] were formed by reaction of Se/SeCl4/BiCl3 in 15:1:8 molar ratio in evacuated glass ampoules applying a temperature gradient from 90 to 80 °C. The crystal structure consists of bicyclic Se102+ cations and of layered chloridobismutate anions with the cations located between the anionic planes. The atoms of the cation form a six membered ring with a Se4 chain bridging over the 1,4 positions of the Se6 ring. The anions are made up of BiCl7 polyhedra connected by common edges to layers all contain an anion of identical formula and two‐dimensional connectivity, but these polymeric chloridobismutates are not isostructural. The structural differences are discussed on basis of the different topologies of the nets made up by the bismuth atoms.
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