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求大神帮忙翻译一下文献中的英文。用谷歌翻译的不是很懂 已有3人参与
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Considering the strong π-conjugated effect of the rigid coplanar Py 2 TTz ligand and d 10 electron configuration of central metal ions, compounds 1 and 2 are likely to exhibit good fluorescent properties. Thus, the fluorescent properties of free ligand and compounds 1 and 2 were investigated. As shown in Figure S7, the free ligand Py 2 TTz exhibits two emission peaks at 440 nm and 451 nm upon excitation at 413 nm in the solid state, which can be assigned to π*-π transition. 68-69 Upon excitation at 414 nm for compound 1 and 417 nm for compound 2, the emission peaks of compounds 1 and 2 in powder samples appear at 453 nm and 518 nm, respectively. Compared with the free ligand Py 2 TTz, the emission peak of compound 1 is slightly red shifted, which can be attributed to metal perturbed emission of ligand. However, compound 2 displays a large red shift of 67 nm, which may be assigned to the ligand- to-metal charge transfer (LMCT). 70-71 |
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