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首页> 外文OA文献 >D1((2)B2g) to D0((2)Au) Fluorescence from the Matrix-Isolated Perylene Cation Following Laser Excitation into the D5(2)B3g) and D2 ((2)B3g) Electronic States
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D1((2)B2g) to D0((2)Au) Fluorescence from the Matrix-Isolated Perylene Cation Following Laser Excitation into the D5(2)B3g) and D2 ((2)B3g) Electronic States

机译：从激光激发进入D5（2）B3g）和D2（（2）B3g）电子态的基质隔离Per离子发出的D1（（2）B2g）至D0（（2）Au）荧光

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摘要

Fluorescence spectra of the perylene cation, pumped by direct laser excitation via the D(sub 2)((2)B(sub 3g)) (left arrow) D(sub 0)((2)A(sub u)) and D(sub 5)(2)B(sub 3g)) (left arrow) D(sub 0)((2)A(sub u)) transitions, are presented. Direct excitation into the D5 or D2 states is followed by rapid non-radiative relaxation to D1 that, in turn,relaxes radiatively. Excitation spectroscopy across the D(sub 2)((2)B(sub 3g)) (left arrow) D(sub 0)((2)A(sub u)) transition near 730 nm shows that site splitting plays little or no role in determining the spectral substructure in the ion spectra. Tentative assignments for ground state vibrational frequencies are made by comparison of spectral intervals with calculated normal mode frequencies.
机译：direct阳离子的荧光光谱，通过D（sub 2）（（2）B（sub 3g））（左箭头）D（sub 0）（（2）A（sub u））和D直接激光激发泵浦（sub 5）（2）B（sub 3g））（向左箭头）D（sub 0）（（2）A（sub u））过渡。直接激发到D5或D2状态后，会迅速向D1释放非辐射弛豫，进而放松辐射。跨越730 nm附近的D（sub 2）（（2）B（sub 3g））（左箭头）D（sub 0）（（2）A（sub u））跃迁的激发光谱表明，位点分裂几乎没有或没有在确定离子光谱中的光谱亚结构方面发挥重要作用。通过将频谱间隔与计算出的正常模式频率进行比较，初步确定了基态振动频率。

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