Preparation of EuBO 3 Microspindles from Europium Coordination Polymer

Europium-based coordination polymer (CP) microspindles were prepared using 2-fluorophenylboronic acid as the organic building block. Uniform EuBO 3 microspindles were obtained via thermal decomposition of europium CP. X-ray diffraction, scanning electron microscopy, energy dispersive spectrometer, and Fourier transform infrared were used to characterize the products. The width and the length of the EuBO 3 microspindles are about 0.3 and 1.0 µm, respectively. Their photoluminescence properties of the products were investigated. On excitation with 394 nm light, strong red light emission centering at 610 nm was realized in the EuBO 3 microspindles. This method may be applied to the preparation of other rare earth borates with complex structures.