New examples of d10 metal-organic frameworks based on 4,4′-(hexafluoroisopropylidene)diphthalic acid: Synthesis, crystal structure and luminescence

作者：Chen, Xiaoli^*; Zhang, Xiaoge; Gao, Loujun; Ma, Hongyan

来源：Journal of Molecular Structure, 2015, 1085: 45-51.

DOI：10.1016/j.molstruc.2014.12.040

• d(10) metal (II)-organic framework
• Crystal structure
• Luminescence

Two novel coordination polymers, [Zn-4(hfpd)(2)(phen)(4)(H2O)(4)](n) (1), {[Cd-2(hfpd)(bpy)(H2O)]center dot H2O}(n) (2) (phen = 1,10-phenanthroline, bpy = 4,4'-bipyridine, H(4)hfpd = 4,4'-(hexafluoroisopropylidene) diphthalic acid), were synthesized and characterized by elemental analyses, FT-IR spectra, single-crystal X-ray diffraction analyses, TGA, powder XRD and fluorescent measurements. Compound 1 shows a 2D network structure built from tetranuclear zinc unit interconnected by (hfpd)(4-) ligands. The adjacent networks are further packed into 3D supramolecular structure through pi center dot center dot center dot pi interactions. 2 possess an unprecedented 3D structure containing 26-number circles and 1D parallelogram channels. Especially the (hfpd)(4-) ligands in 1-2 adopt three different conformations and coordination modes. In addition, the thermal stability and photoluminescence properties of 1-2 were also studied.

• 出版日期2015-4-5
• 单位延安大学