A templating anion is a must for the formation of the cage compounds [Ag14(C≡CtBu)12X]OH (X=Cl, Br), in which a rhombic dodecahedron of silver atoms surrounds the central X atom (see picture). The silver atoms are held together by a combination of bridging alkynyl groups (not shown) and argentophilic Ag⋅⋅⋅Ag interactions. In the absence of the templating anion insoluble polymeric materials are obtained.
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Rais et al. (2001) studied this question.
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