Two rod-based 3-D lead(II) tetrafluoroterephthalate coordination frameworks with sra topology: Syntheses, structures, and properties

Two three-dimensional (3-D) PbII coordination frameworks [Pb(BDC-F4)(CH3OH)]n (1) and [Pb(BDC-F4)(DMF)(CH3OH)]n (2) have been prepared by the reactions of Pb(NO3)2 with a rigid dicarboxyl compound tetrafluoroterephthalic acid (H2BDC-F4) in different solvents. Single crystal X-ray diffraction reveals that both complexes show the unusual rod-based coordination networks with sra topology, although they crystallize in different space groups (C2/c   and P1¯). Their spectroscopic, thermal, and fluorescence properties have also been studied.

Graphical abstractThis work presents two novel 3-D lead(II) coordination frameworks with tetrafluoroterephthalate, exhibiting sra type network structures based on infinite rod-shaped building units.Figure optionsDownload full-size imageDownload as PowerPoint slide