1. Department of Chemistry, Fuzhou University, Fuzhou 350002, China 2. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
Abstract:Two compounds of organic molybdate-alkali salt: [H(4,4’-bipy)]2[K2Mo8O26](Ⅰ) and H3[Na Mo8O26](4,4’-bipy)5(H2O)4(Ⅱ), with β-[Mo8O26]4- anion, were synthesized. The relationship between their properties and structures was studied by using FTIR, Raman, NIR-Vis and fluorescence etc. They possess isolating β-[Mo8O26]4- anion, whose terminal O atoms combine with alkali. The FTIR and Raman spectra showed that the vibrational frequencies of the group are related to the structure of the materials. In UV-Vis spectra of compound (Ⅰ) and (Ⅱ), there is a characteristic wide peak at 280-300 nm. The fluorescence spectra of compound (Ⅰ) and (Ⅱ) were studied, which showed that the wide emission peak is from 450 to 650 nm and excited by 350 nm for compound (Ⅰ), and the emission peak is from 400 to 550 nm and excited by 325 nm for compound (Ⅱ). For compound (Ⅰ), the intensity of emission becomes stronger with decreasing of temperature, and so does the fluorescence lifetime.
陈义平1,张汉辉1, 2*,黄长沧1,孙瑞卿1,杨齐瑜1 . 两种含有[Mo8O26]簇骼的化合物的光谱研究[J]. 光谱学与光谱分析, 2006, 26(04): 703-706.
CHEN Yi-ping1,ZHANG Han-hui1, 2*,HUANG Chang-cang1,SUN Rui-qing1,YANG Qi-yu1 . Spectral Study of Two Compounds of Molybdate Salt with β-[Mo8O26] Anion. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(04): 703-706.