高氯酸铽、六氟磷酸铽与二苯基亚砜、苯丁基亚砜配合物的发光

来源 :内蒙古大学学报(自然科学版) | 被引量 : 0次 | 上传用户:cj304465902
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合成了Tb(DPSO)6·(ClO4)3、Tb(DPSO)7·(PF6)3及Tb(PBSO)6·(ClO4)3配合物(DPSO为二苯基亚砜PBSO为苯丁基亚砜).在室温下测定了它们的固体粉末荧光激发和发射光谱,结果表明Tb(DPSO)6·(ClO4)3配合物中Tb3+的发光强度最高,其中5D4→7F5跃迁谱带强度高达806.2cd,Tb(DPSO)7(PF6)3配合物中Tb3+发光强度次之,Tb(PBSO)6(ClO4)3配合物中Tb3+的发光强度最弱.这说明二苯亚砜做为配体受激后向Tb3+离子传递能量的效率高于苯丁基亚砜,另外ClO4-做为阴离子也可增加Tb3+的发光强度,原因是部分外界ClO4-离子可进入内界参予配位,降低了配合物的对称性,部分解除了跃迁禁律,提高了Tb3+的发光强度. The complexes of Tb (DPSO) 6 · (ClO4) 3, Tb (DPSO) 7 · (PF6) 3 and Tb (PBSO) 6 · (ClO4) 3 were synthesized. DPSO is diphenylsulfoxide PBSO is phenylbutylidene Sulfone). The fluorescence excitation and emission spectra of Tb3 + in Tb (DPSO) 6 · (ClO4) 3 complex were measured at room temperature. The intensity of 5D4 → 7F5 transition band is up to 806.2cd, Tb Tb3 + in Tb (PBSO) 6 (ClO4) 3 complex, the emission intensity of Tb3 + in Tb (PBSO) 6 (ClO4) 3 complex is the weakest. This shows that as a ligand ligand, BTPA is more effective in delivering energy to Tb3 + ions than phenylbutyl sulfoxide. In addition, ClO4- can also increase the luminescence intensity of Tb3 + because some ClO4- ions Into the interior to participate in coordination, reducing the symmetry of the complex, partially lifted the ban on the transition, increased the luminous intensity of Tb3 +.
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