首页> 外文期刊>Radiation Physics and Chemistry >Radiation damage in Pt(II) complexes: EPR study of an X-irradiated single crystal of Pt(1,3-dimethyl-imidazoline-2- Thione)_4Cl_2.4H_2O
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Radiation damage in Pt(II) complexes: EPR study of an X-irradiated single crystal of Pt(1,3-dimethyl-imidazoline-2- Thione)_4Cl_2.4H_2O

机译:Pt(II)配合物中的辐射损伤:对X射线辐照的Pt(1,3-二甲基-咪唑啉-2-噻吩)_4Cl_2.4H_2O的单晶体的EPR研究

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摘要

Several radiation defects have been detected by EPR in a single-crystal of Pt(dmimt)_4Cl-2.4H_2O (dmimt=1,3-dimethyl-imidazoline-2-thione). In order to identify these radiogenic species, the structure of the crystal has been resolved and the angular dependence of the EPR signals has been analysed. The resulting g tensors and ~195Pt hyperfine tensors have been determined and the orientations of their principal axes have been compared to those of the bond directions of the precursor. It is shown that both Pt(I) and Pt(III) complexes are trapped, whereas Pd(dmimt)`2_4+ present as an impurity, leads only to the Pd(I) species.
机译:通过EPR在Pt(dmimt)_4Cl-2.4H_2O(dmimt = 1,3-二甲基-咪唑啉-2-硫酮)单晶中检测到一些辐射缺陷。为了鉴定这些放射源物种,已经解析了晶体的结构,并且已经分析了EPR信号的角度依赖性。确定了所得的g张量和〜195Pt超精细张量,并将其主轴方向与前体键合方向进行了比较。结果表明,Pt(I)和Pt(III)络合物均被捕获,而Pd(dmimt)`2_4 +作为杂质存在,仅导致Pd(I)物种。

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