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.