Acta Cryst. (2007). E63, m1968  [ doi:10.1107/S1600536807029923 ]

Tetrakis(2,2':6',2''-terpyridinium) hexabromidorhenate(IV) bis[aquatetrabromidooxidorhenate(V)] tetrabromide dihydrate

A. Kochel

Abstract: The title compound, (C₁₅H₁₃N₃)₄[ReBr₆][ReBr₄O(H₂O)]₂Br₄·2H₂O, is a mixed-valence molecular salt containing rhenium(IV) (as centrosymmetric [ReBr₆]^2- anions) and rhenium(V) (as trans-[ReO(H₂O)Br₄]^- oxidoanions). The Re-O and Re-Br distances are consistent with the different oxidation states of Re in the anions. A complex hydrogen-bonding network helps to establish the crystal packing.

Online 22 June 2007

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