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yunzhijun112

木虫 (著名写手)

[求助] 求助论文翻译,化学方面的

金属卟啉在紫外可见区域具有特征吸收带,依据Gouterman 的四轨道模型,对于D4h对称性的金属卟啉配合物,其最高占有轨道(HOMO)上有两个能量接近的a1μ(π)和a2μ(π)能级,最低空轨道(LUMO)上有一对简并的eg(π*)能级,从a1μ(π)、a2μ(π)到eg(π*)产生两个单激发的跃迁,在400 nm 左右的强吸收B带源于a1μ(π) →eg(π*)跃迁,在500~600 nm 的弱吸收Q带则源于a2μ(π)→eg(π*)跃迁,Q 带包括α和β两个吸收带,α吸收带位于高波长处。由图4可以看出,ZnPP-PS的B 、α和β吸收带分别位于425,559,599nm处,与文献[16]报道的小分子ZnPP的电子吸收光谱相似,这说明ZnPP被高分子化后,所形成的金属卟啉功能化聚合物ZnPP-PS保留了小分子ZnPP的光谱性能。

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yunzhijun112

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引用回帖:
4楼: Originally posted by hookhans at 2013-03-23 11:50:15
当然, 你得根据需要做进一步的修饰, 这样才是你的文章.

5楼2013-03-23 17:36:00
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hookhans

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【答案】应助回帖

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yunzhijun112: 金币+10, 翻译EPI+1, 有帮助 2013-03-23 11:33:51
sltmac: 金币+30, 欢迎常来本版交流 2013-03-26 08:48:05
Metalloporphyrin has characteristic absorption bands in the UV-vis region. And according to the Gouterman four orbital model, the D4h symmetric metalloporphyrin has two energy close a1μ(π) and a2μ(π) levels on the high occupied molecular obital (HOMO), and a couple of degenerated eg(π*) levels on the low unoccupied molecular orbital(LUMO). The transitions from a1μ(π)、a2μ(π) to eg(π*) will generate two single excitation transitions. The strong absorption band B at ca. 400 nm is due to a1μ(π) →eg(π*) transition, and the weak absorption band Q at ca. 500~600 nm is due to a2μ(π)→eg(π*) transition. The Q band includes αand βabsorption bands with the former lying at the higher wavelength. It can be seen from Fig. 5 that the B、α和βabsorption bands of ZnPP-PS are at 425,559,599 nm, respectively, which is in well agreement with the electron absorption spectroscopy of the small molecule ZnPP reported in Ref. [16]. This demonstrates that the functional mtalloporphyrin polymer ZnPP-PS formed by the polymerization of ZnPP maintained (reserved) the spectroscopic properties of the small molecule ZnPP.
where-there-is-a-will-there-is-a-way.
2楼2013-03-23 11:03:39
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yunzhijun112

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引用回帖:
2楼: Originally posted by hookhans at 2013-03-23 11:03:39
Metalloporphyrin has characteristic absorption bands in the UV-vis region. And according to the Gouterman four orbital model, the D4h symmetric metalloporphyrin has two energy close a1μ(π) and a2μ ...

谢谢,你的翻译意思到位,但还需要修改。
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3楼2013-03-23 11:35:21
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hookhans

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Farmer

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当然, 你得根据需要做进一步的修饰, 这样才是你的文章.
where-there-is-a-will-there-is-a-way.
4楼2013-03-23 11:50:15
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