Coordination Networks with Fluorinated Backbones

Fluorine-containing ligands 2,3,5,6-tetrafluoro-1,4-bis(imidazol-1-yl-methyl)benzene (1) and 2,3,5,6-tetrafluoro-1,4-bis(2-methylimidazol-1-yl-methyl)benzene (2) were prepared and coordinated with AgNO3, Co(ClO4)2·6H2O, and Cd(NO3)2·4H2O, respectively, to form the following structures: 3D channel polymer [Ag2(1)2(NO3)2·H2O·MeOH]n (3), 2D sheet polymer [Co(1)3(ClO4)2]n (4), 1D chain polymer [Cd(1)3(NO3)2·4H2O]n (5), and a 2D herringbone sheet polymer [Ag(2)NO3·1.5MeOH]n (6). The solid-state crystal structures of 3−6 were studied by single-crystal X-ray crystallography.