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The critical halogen-bonding motif (CBr...BrCu) is responsible for the successful synthesis of three-dimensional networks of unusual 4,5-connected dodecahedron cells (each containing the encapsulated cation) via the self-assembly of tetra-n-propylammonium dibromocuprate(I) and tetrabromomethane as prototypical donor/acceptor dyads.
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Rosokha et al. (2007) studied this question.
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