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作 者:李文先[1] 刘英平[1] 孙元洪[1] 连锡山[1] 张东凤[1]
机构地区:[1]内蒙古大学化学系
出 处:《内蒙古大学学报(自然科学版)》1999年第3期339-342,共4页Journal of Inner Mongolia University:Natural Science Edition
基 金:内蒙古自然科学基金
摘 要:合成了高氯酸镝二苯亚砜Dy(DPSO)6(ClO4)3、六氟磷酸镝二苯亚砜Dy(DPSO)7(PF6)3、高氯酸镝苯丁基亚砜Dy(PBSO)6(ClO4)3三个配合物.测定了配合物的组成、摩尔电导及粉晶荧光激发和发射光谱,根据光谱实验结果计算了配体的S1及Dy3+的第一激发态及基态能级.通过对三个配合物的荧光发射光谱的研究知:Dy(DPSO)6(ClO4)3的发光强度最高,其中4F92→6H152谱带强度高达1066cd.表明DPSO配体受激发后可将能量有效地传递给Dy3+。Dy(DPSO) 7 (PF 6) 3, Dy(DPSO) 6(ClO 4) (ClO 4) 2 and Dy(PBSO) 6(ClO 4) (ClO 4) 2 (DPSO as the abbreviation to diphenyl sulfoxide.PBSO to phenyl butyl sulfoxide) have been synthesized.The coordination compounds have been studied by means of composition analysis,molar conductivity and fluorescent excitation and emission spectra. 4F 9/2 , 6H j/2 (j=13,11) energy level of Dy 3+ and energy levels of ligand have been calculated according to the fluorescent spectra results.In the fluorescent experiments it was found that the fluorescent emission intensity of Dy 3+ ion in Dy(DPSO) 6(ClO 4) (ClO 4) 2 is the highest and 4F 9/2 → 6H 15/2 fluorescence emission intensity is 1 066 cd.The results show that the excitation energy of DPSO ligand is very easily transferred to Dy 3+ ion in Dy(DPSO) 6(ClO 4) (ClO 4) 2 coordination compounds.In addition,ClO - 4 canbe enhanced fluorescence emission of Dy 3+ to a certain degree.
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