Coordinating ability of anions: 3-D silver(I) coordination polymers of C₃-symmetric N,N′,N″ -tris(2-pyridinylethyl)-1,3,5-benzenetricarboxamide

Reaction of AgX (X^- = NO₂^- and CF₃SO₃^-) with C₃-symmetric N,N′,N″-tris(2-pyridinylethyl)-1,3,5-benzenetricarboxamide (L) produces, respectively, an unusual nitrite-bridged 3-D coordination polymer, [Ag₂(NO₂)₂L]·H₂O, with trinodal 3,3,4-connected tfa net topology and a unique 3-D coordination polymer, [Ag₃L₂](CF₃SO₃)₃·CH₂Cl₂·4H₂O, with sixfold interpenetrating uninodal 3-connected ths net topology. Nitrite anions are two kinds of chelating and bridging ligands, whereas trifluoromethanesulfonate anions are simple counteranions. Structure-related thermal behavior, anion exchangeability, and photoluminescence have been investigated.