Fluorescence Lifetime of the Europium Dibenzoylmethides
Fluorescence Lifetime of the Europium Dibenzoylmethides
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二苯甲酰甲基铕的荧光寿命
DOI：
10.1063/1.1734280
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发表时间：
1963
影响因子：
4.4
通讯作者：
M. Metlay
中科院分区：
文献类型：
--
作者：
M. Metlay
本文报道了含四个铕分子的二苯甲酰甲烷（EuD_3）和含三个铕分子的螯合物（EuD_4）的荧光寿命。在300和77 ° K时，EuD的寿命分别为80 ± 3和369 ± 15，EuD的寿命分别为533 ± 10和533 ± 20。红外光谱在1415 cm-1处有一个强吸收峰，这是由于邻羰基亚甲基的氢弯曲振动引起的。讨论了EuD_3和EuD_4寿命不同的原因。（P.C.H.）
S>The fluorescence lifetimes of dibenzoylmethane containing four molecules per atom of europium (EuD₄) and a chelate containing three molecules (EuD₃) are reported. The lifetimes were found to be 80 plus or minus 3 and 369 plus or minus 15 for EuD₃ and 533 plus or minus 10 and 533 plus or minus 20 for EuD₄ at 300 and 77 deg K, respectively. The infrared spectrum of EuD₄ shows a strong absorption at 1415 cm⁻¹, absent in EuD₃, which can be attributed to a hydrogen bending vibration of a methylene group adjacent to a carbonyl. Reasons for the difference between the lifetimes of EuD₃ and EuD₄ are discussed. (P.C.H.)