PORPHYRINS .22. FAST FLUORESCENCE, DELAYED FLUORESCENCE, AND QUASILINE STRUCTURE IN PALLADIUM AND PLATINUM COMPLEXES
PORPHYRINS .22. FAST FLUORESCENCE, DELAYED FLUORESCENCE, AND QUASILINE STRUCTURE IN PALLADIUM AND PLATINUM COMPLEXES
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DOI：
10.1016/0022-2852(71)90212-8
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发表时间：
1971-01-01
影响因子：
1.4
通讯作者：
HENDERSON, BH
中科院分区：
文献类型：
--
作者：
CALLIS, JB;GOUTERMAN, M;HENDERSON, BH
三个钯卟啉表现出快速和延迟荧光，而铂etioporphyrin只表现出延迟荧光。实验测得的延迟荧光产额与根据详细平衡原理计算的产额一致。钯卟啉的快速荧光产率为Φ ff 3× 10 - 4，意味着不确定性谱线展宽为Δ v 0.25 cm-1。铂原卟啉缺乏可测量的Φ ff意味着最小Δ ν λ> 5 cm− 1。在正构烷烃基质中，吸附S 0→ S1表现出准线，其半宽分别为：Pd、Pt和Cu卟吩的Δ ν λ = 8 cm− 1、16 cm− 1和140 cm− 1。后两者的实验值归因于不确定性扩大所产生的无辐射衰变的S 1。
Three Pd porphyrins are shown to exhibit fast and delayed fluorescence, while Pt etioporphyrin exhibits only delayed fluorescence. The yield of delayed fluorescence obtained experimentally agrees with the yield calculated from the principle of detailed balance. Fast fluorescence yields from the Pd porphyrins of Φ ff∼ 3× 10− 4 imply an uncertainty line broadening of Δ ν∼∼ 0.25 cm− 1. Lack of a measurable Φ ff for Pt etioporphyrin implies a minimum Δ ν∼> 5 cm− 1. In n-alkane matrices the absorption S 0→ S 1 shows quasilines with halfwidths Δ ν∼∼ 8 cm− 1, 16 cm− 1, and 140 cm− 1 for Pd, Pt, and Cu porphin, respectively. The experimental values for the latter two are attributed to uncertainty broadening arising from radiationless decay out of S 1.