Abstract
The structure of the new complex with molecular formula [Cu{(CH3)(2)SO}(6)]I-4, has been determined. The compound comprises discrete [Cu{(CH3)(2)SO}(6)](2+) units connected through a self-assembly process with a linear arrangement of polyiodide I-2n (+) (2-)(2), driven by non-classical hydrogen bonds C - H center dot center dot center dot I. The polyiodide chain presents a neutral I-2 molecule weakly coordinated with two iodide anions. The linear, uncoordinated, centro-symmetric polyiodide anion represents a rare example of a tetraiodide. (C) 2013 Elsevier B.V. All rights reserved.