Synthesis, structure, and photocatalytic activity of a novel Ni (II) coordination polymer based on p-aminohippuric acid

ABSTRACT

A novel Ni(II) coordination polymer, {[Ni(C₉H₉N₂O₃)₂(H₂O)₂]·H₂O}_n(1)(C₉H₁₁N₂O₃, p-Aminohippuric acid, PAH), has been synthesized and characterized by single-crystal X-ray diffraction, elemental analysis, IR spectra, and thermal analysis. Single-crystal X-ray analysis reveals that each Ni(II) ion is six-coordinated by two coordinated water molecules, two carboxylate oxygen atoms, and two nitrogen atoms from PAH forming a octahedral geometry. The complex features a 2-nodal 2,4-connected network with unprecedented Schläfli symbol of (4²)(4)₂. In addition, the photocatalytic studies indicate that this complex is a good candidate for the photocatalytic degradation of rhodamine B.

KEYWORDS:

• Ni(II) complex
• topological analysis
• photocatalytic activity

Funding

This research was supported by the National Natural Science Foundation of China to C.F. Bi (No. 21371161 and No. 21071134).