Interpenetrating coordination polymers from CuI or AgI and flexible ligands:: 2D polyrotaxanes and interpenetrating grids

The reaction of [Cu(CH3CN)(4)]NO3 or AgNO3 with flexible ligands 1,4-bis(4-pyridylmethyl)-2,3,5,6-tetrafluorobenzene (bpf) or 4,4'-bis(4-pyridylmethyl)2,2',3,3',5,5',6,6'-octafluorobiphenyl (bpfb) afforded two types of interpenetrating coordination polymers. The structures of [Cu-2(bpf)(3)(NO3)(2)](n) and [Ag-2(bpf)(3)(NO3)(2)](n) are 2D polyrotaxane networks in which 1D polymeric chains are aligned in a grid. The structure of {[Cu(bpfb)(2)]NO3}(n) is a 2D grid polymer with two-fold parallel interpenetration.