论文部分内容阅读
利用配合物Eu(DBM)(TPPO)_3(NO_3)_2(DBM:二苯甲酰甲烷;TPPO:三苯基氧化膦)能发出很强荧光的特性,以Eu(Ⅲ)离子为荧光探针,77K下测得其高分辨激光激发和发射光谱.激发光谱表明配合物中Eu(Ⅲ)离子仅有1种晶格格位.~5D_o→~7F_j(j=0~4)跃迁光谱表明中心Eu(Ⅲ)离子具有C_(2v)格位对称性.
Eu (Ⅲ) ions can be used as fluorescent probes because Eu (Ⅲ) ions can be emitted by Eu (DBM) (TPPO) _3 (NO_3) _2 (DBM: dibenzoylmethane and TPPO: triphenylphosphine oxide) , 77K. The excitation spectra show that there is only one kind of Eu (Ⅲ) ion in the complex. The transition spectra of ~ 5D_o → ~ 7F_j (j = 0 ~ 4) show that Eu (Ⅲ) ions have C_ (2v) lattice symmetry.