Silver(I) helicates with 2-(arylazo)pyrimidines. Single crystal X-ray structure of {2-(phenylazo)pyrimidine}silver(I) nitrate

2-(Arylazo)pyrimidines (aapm) react with AgNO3 in methanol and crystallises in a single strand right-handed helical coordination polymer, [Ag(aapm)(NO3)]n. The X-ray structure determination of Ag[2-(phenylazo)pyrimidine] (papm) (NO3) (abbreviated, Ag(papm)(NO3)) suggests the triangular coordination around Ag(I) which is made up of chelated azoimine, –NN–CN–, function from one ligand and the third donor centre is coming from meta-related pyrimidine-N of the adjacent papm of the second Ag(papm)-unit. The coordination polymer is propagated through pyrimidine-N→Ag bonding.