英语翻译Photophysical Properties.The photophysical propertiesof

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英语翻译
Photophysical Properties.The photophysical properties
of complexes 1-5 in CH2Cl2,EtOH,and PBS were
researched,and the data are summarized in Table 4.
Figure 2 shows the UV-vis absorption spectra recorded
in PBS at room temperature.In the high-energy region of
240-320 nm,all these compounds exhibit intense absorption
bands with extinction coefficient ε > 10 000 M-1
cm-1,which are assigned to spin-allowed ligand-centered
transitions 1LC (1πfπ*) localizing on Hdcbpy and C∧N
ligands.The weak absorptions (2 000

光物理性质.对络合物1－5在CH2Cl2、EtOH和PBS中的光物理性质就行了研究,数据归纳在表4中.图2示出了在室温下于PBS中记录到的紫外可见吸收光谱.在240－320 nm的高能区,所有这些化合物都呈现出强吸收带,消光系数ε＞10 000 M－1cm－1,这被归因于自旋允许的、以配体为中心的、集中在Hdcbpy和C＾N配体上的跃迁1LC（1π→π*）.在320－410nm处的弱吸收（2 000＜ε＜10 000 M－1cm－1）则归因于自旋允许的、单线态到单线态、金属到配体的电荷传递（1MLCT）和配体到配体电荷传递（1LLCT）,这在铱（III）化合物中是常见的.46,49-51 在410nm的更弱的吸收可以用伴随某些部分3LLCT和3MLCT46,51-54的自旋禁戒3LC跃迁来解释,这也被其后的DFT（离散傅立叶变换）计算所确认了.

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