Two rod-based 3-D lead(II) tetrafluoroterephthalate coordination frameworks with sra topology: Syntheses, structures, and properties
摘要:
Two three-dimensional (3-D) Pb-II coordination frameworks [Pb(BDC-F-4)(CH3OH)](n) (1) and [Pb(BDC-F-4)(DMF)(CH3OH)](n) (2) have been prepared by the reactions of Pb(NO3)(2) with a rigid dicarboxyl compound tetrafluoroterephthalic acid (H2BDC-F-4) 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 P (1) over bar). Their spectroscopic, thermal, and fluorescence properties have also been studied. (C) 2009 Elsevier B.V. All rights reserved.