Effect of substituted groups of ligand on construction of topological networks: In situ generated silver(I) tetrazolate coordination polymers

Solvothermal reactions of AgNO3, NaN3 with acetonitrile and propionitrile in methanol yield two non-interpenetrated supramolecular networks, [Ag(Mtta)]n (1) and [Ag(Etta)]n (2) (Mtta = 5-methyl tetrazolate, Etta = 5-ethyl tetrazolate), respectively, involving ligand in situ formation by cycloaddition of nitriles and azides. Difference of steric hindrance from substituted groups in tetrazole leads to the diversity of topological networks: 1 possesses 2-D 3-connected (4.82)Ag (4.82)Mtta topological network, whereas complex 2 is a 3-D 3-connected (10,3)-a metal network.