Application in coordination chemistry. Many of the Nheterocyclic compounds noted above could serve as good ligands for metal ions. To illustrate one such utility, pyrazolates of silver(I) were investigated, which represent an important class of compounds with interesting properties and useful applications. They most commonly adopt planar structures featuring nine-membered Ag3N6 metallacycles and often show various types of intertrimer argentophilic AgAg contacts leading to supramolecular aggregates. Survey shows that silver complexes of 3,5-disubstituted pyrazoles are the most common, while the homoleptic, binary silver complexes of 3,5-nonsubstituted pyrazoles are very limited. Thus, we set out to probe the chemistry of pyrazoles 2 and 64b with silver(I).