A three-dimensional Cu–Na heteronuclear coordination polymer based on iminodi­acetic acid

In a novel Cu–Na heteronuclear three-dimensional coordination polymer, the carboxyl­ate groups of iminodi­acetate (ida) ligands act as bridges and connect [Cu(ida)] and [Cu(ida)₂] building blocks in a 2:1 ratio, forming two-dimensional arrays. These layers are inter­connected into a three-dimensional structure by sodium ions.

A three-dimensional chiral crystal structure constructed from a chiral triazolate ligand showing an SrSi₂ topology: poly[bis­([mu]₃-3,5-diethyl-1,2,4-triazolato-[kappa]³N¹:N²:N⁴)tris­ilver nitrate]

A metal-organic framework (MOF) is reported in which an Ag^I cation is coordinated by two N atoms from two different 3,5-diethyl-1,2,4-triazolate ligands in a linear configuration. Each Ag^I cation is then connected to two adjacent Ag^I cations via a [mu]₃-N¹:N²:N⁴-triazolate ligand.