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The Bicyclic Polyselenium Cation Se 10 2+ in the Structure of Se 10 [Bi 4 Cl 14 ]
Author(s) -
Beck Johannes,
Eck Steffen J.
Publication year - 2010
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201000165
Subject(s) - isostructural , bismuth , crystallography , crystal structure , bicyclic molecule , chemistry , ampoule , ring (chemistry) , ternary operation , ion , inorganic chemistry , stereochemistry , organic chemistry , computer science , programming language
In the ternary system Se/Bi/Cl a new polycation containing phase besides the already known Se 4 [Bi 4 Cl 14 ], Se 8 [Bi 4 Cl 14 ], and Se 10 [Bi 5 Cl 17 ] was discovered. Red, transparent, plate shaped crystals of Se 10 [Bi 4 Cl 14 ] were formed by reaction of Se/SeCl 4 /BiCl 3 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 Se 10 2+ 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 Se 4 chain bridging over the 1,4 positions of the Se 6 ring. The anions are made up of BiCl 7 polyhedra connected by common edges to layers $\rm ^2_\infty[BI_{4}Cl_{14}{^{2-}}]$ 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.