Syntheses and Fluorescence Properties of Two Novel Lanthanide (III) Perchlorate Complexes with Bis(benzylsulfinyl)methane
作者:Wen-Xian Li、Ying-Jie Li、Wen-Juan Chai、Tie Ren、Yu Liu、Jing Zhang、Bo-Yang Ao
DOI:10.1007/s10895-011-1001-5
日期:2012.3
two lanthanide (III) complexes were synthesized and characterized by element analysis, molar conductivity, coordination titration analysis, IR, TG-DSC, 1HNMR and UV spectra. The results indicated that the composition of these complexes was REL2.5(ClO4)3·3H2O (RE = Tb (III), Dy (III), L = C6H5CH2SOCH2SOCH2C6H5). The FT-IR results revealed that the perchlorate group was bonded with the lanthanide ion
采用新方法合成了具有双亚磺酰基的新型配体双(苄基亚磺酰基)甲烷,并合成了其两种镧系元素(III)配合物,并通过元素分析、摩尔电导率、配位滴定分析、IR、TG-DSC、1 HNMR 和紫外光谱。结果表明,这些配合物的组成为REL 2.5 (ClO 4 ) 3 ·3H 2 O (RE = Tb (III), Dy (III), L = C 6 H 5 CH 2 SOCH 2 SOCH 2 C 6 H 5)。FT-IR结果表明高氯酸根通过氧原子与镧系离子键合,配位为双齿。荧光光谱表明,Tb(III)和Dy(III)配合物在固态下均显示出特征荧光,尤其是Tb(III)配合物,5 D 4 → 7 F 5的峰Tb (III) 离子在 544 nm 处的强度高于其他离子。表明Tb(III)配合物能发出较纯的绿色荧光。通过分析荧光和磷光光谱,发现配体具有吸收能量并将其转移到Tb(III)和Dy(II