Ancillary Ligand-Mediated Syntheses, Structures and Fluorescence of Three Zn/Cd(II) Coordination Polymers Based on Nitrobenzene Dicarboxylate

作者：Li Gui lian; Liu Guang zhen^*; Huang Lei lei; Li Lin; Zhang Xue

来源：Journal of Inorganic and Organometallic Polymers and Materials, 2014, 24(3): 617-623.

DOI：10.1007/s10904-014-0024-1

• Benzenedicarboxylate
• Mixed ligand
• Coordination polymer
• Helical chain
• Fluorescence

The Zn/Cd(II)-nbdc carboxylate motifs mediated by various dipyridyl-typed ligands afforded three new coordination compounds, namely, [Zn(nbdc)(bpa)(0.5)(H2O)]center dot H2O (1), [Zn-2(nbdc)(2)(bpp)(2)]center dot H2O (2), and [Cd(nbdc)(bpe)(0.5)(H2O)(2)] (3) (H(2)nbdc = 4-nitrobenzene-1,2-dicarboxylic acid, bpa = 1,2-bi(4-pyridyl)ethane, bpe = 1,2-di(4-pyridyl)ethylene, and bpp = 1,3-bis(4-pyridyl)propane), which were synthesized by hydrothermal reaction and characterized by elemental analysis, IR, thermal analysis (TGA), and fluorescent analysis. The single-crystal X-ray diffractions reveal that three complexes display a diverse range of connectivity topology from 1D to 3D, which is dependent on the type of dipyridyl-typed ligands and metal centers. Complex 1 is the 1D chain featuring Zn-carboxylate binuclears extended further by bpa coligands. Complex 2 is the 2D thick-layer containing double-stranded chains cross-linked further by bpp coligands. Complex 3 is the 3D framework with (6(3))(6(5).8) ins topology featuring Cd-carboxylate chiral layers pillared by bpe coligands. The thermal stabilities and fluorescence properties for complexes 1-3 are investigated.

• 出版日期2014-5
• 单位洛阳师范学院