多组分丝素蛋白-Cu(II)配合物的EPR谱解析

多组分丝素蛋白-Cu(II)配合物的EPR谱解析
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DOI:
10.3866/pku.whxb20060208
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发表时间:
2006-01
期刊:
物理化学学报, 22(2),167-171,2006
影响因子:
--
通讯作者:
周平*
周平*
中科院分区:
其他
文献类型:
--
作者:
胡炳文;赵学舟;宗小红;周平*

文献摘要

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电子顺磁共振(EPR)谱具有超精细耦合和多配位成分,其模拟往往比较困难。在这里,我们开发了一种基于二阶微扰理论的模拟方法来解决这些问题。以丝素蛋白-Cu(Ⅱ)配合物的EPR光谱模拟为例,说明了该方法的可行性,有效地揭示了Cu(Ⅱ)在家蚕吐丝过程中的作用。此外,该方法还可用于含Fe(Ⅱ)、Mn(Ⅱ)、V(Ⅲ)等顺磁离子配合物的EPR模拟。
The simulation for electronic paramagnetic resonance (EPR) spectrum with hyperfine couplings as well as multiple coordination components is often difficult. Here we develop a simulation approach based on the second-order perturbation theory to address these issues. The EPR spectral simulations of the silk fibroin-Cu(Ⅱ) complexes are taken as examples to illustrate this approach, efficiently revealing the function of Cu(Ⅱ) in the spinning process of silkworm. In addition, this approach would be useful for the EPR simulations of complexes containing Fe(Ⅱ), Mn(Ⅱ), V(Ⅲ) and other paramagnetic ions.