A Dihalide–Decahydrate Cluster of [X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> in a Supramolecular
Architecture of {[Na<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>(H<sub>2</sub>O@TMEQ[6])]·2(C<sub>6</sub>H<sub>5</sub>NO<sub>3</sub>)}X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub> (TMEQ[6] = α,α′,δ,δ′-Tetramethylcucurbit[6]uril;
X = Cl, Br)
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Abstract
A discrete
dihalide–decahydrate cluster of [X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>]<sup>2–</sup> has been
observed in a solid-state structure of {[Na<sub>2</sub>(H<sub>2</sub>O)<sub>6</sub>(H<sub>2</sub>O@TMEQ[6])]·2(C<sub>6</sub>H<sub>5</sub>NO<sub>3</sub>)}X<sub>2</sub>(H<sub>2</sub>O)<sub>10</sub>} (TMEQ[6] = α,α′,δ,δ′-tetramethylcucurbit[6]uril;
X = Cl (<b>1</b>), Br (<b>2</b>)). Its structure can be
viewed as a connection of two [X(H<sub>2</sub>O)<sub>3</sub>]<sup>−</sup> clusters with a uudd water tetramer through
hydrogen-bonding interactions