Interpenetrating Coordination Polymers from Cu I or Ag I and Flexible Ligands: 2D Polyrotaxanes and Interpenetrating Grids

The reaction of [Cu(CH 3 CN) 4 ]NO 3 or AgNO 3 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 (NO 3 ) 2 ] n and [Ag 2 (bpf) 3 ‐(NO 3 ) 2 ] n are 2D polyrotaxane networks in which 1D polymeric chains are aligned in a grid. The structure of {[Cu(bpfb) 2 ]NO 3 } n is a 2D grid polymer with two‐fold parallel interpenetration.