College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, People's Republic of China.
J Fluoresc. 2012 Mar;22(2):651-8. doi: 10.1007/s10895-011-1001-5. Epub 2011 Oct 21.
A novel ligand with double sulfinyl groups, bis(benzylsulfinyl)methane, was synthesized by a new method and its two lanthanide (III) complexes were synthesized and characterized by element analysis, molar conductivity, coordination titration analysis, IR, TG-DSC, (1)HNMR and UV spectra. The results indicated that the composition of these complexes was 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)). The FT-IR results revealed that the perchlorate group was bonded with the lanthanide ion by the oxygen atoms, and the coordination was bidentate. The fluorescent spectra illustrated that both the Tb (III) and Dy (III) complexes displayed characteristic fluorescence in solid state, especially for the Tb (III) complex, the peak of (5)D(4) → (7)F(5) of the Tb (III) ion in 544 nm was stronger than that of others. It indicated that the Tb (III) complex could emit purer green fluorescence. By analysis fluorescence and phosphorescence spectra, it was found that the ligand had the advantage to absorb energy and transfer it to the Tb (III) and Dy (III) ions. The phosphorescence spectra and fluorescence lifetimes of the complexes were also measured.
一种新型的双亚砜配体，双（苄基亚砜）甲烷，通过一种新的方法合成，并通过元素分析、摩尔电导率、配位滴定分析、IR、TG-DSC、（1）HNMR 和 UV 光谱对其两种镧系元素（III）配合物进行了合成和表征。结果表明，这些配合物的组成是 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，配位是双齿配位。荧光光谱表明，Tb（III）和 Dy（III）配合物在固态中都显示出特征荧光，特别是 Tb（III）配合物，在 544nm 处 Tb（III）离子的（5）D（4）→（7）F（5）峰比其他峰更强。这表明 Tb（III）配合物可以发射更纯的绿光荧光。通过分析荧光和磷光光谱，发现该配体具有吸收能量并将其转移到 Tb（III）和 Dy（III）离子的优势。还测量了配合物的磷光光谱和荧光寿命。
