Study on chemical reactions of isolated Mossbauer probes in solid gas matrices using in-beam Mössbauer spectroscopy
Study on chemical reactions of isolated Mossbauer probes in solid gas matrices using in-beam Mössbauer spectroscopy
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使用束内 M 研究孤立穆斯堡尔探针在固体气体基体中的化学反应
DOI：
10.1007/s10751-016-1261-1
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
and A. Kitagawa
中科院分区：
文献类型：
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作者：
S. Tanigawa;Y. Kobayashi;Y. Yamada;M. Mihara;M. K. Kubo;J. Miyazaki;W. Sato;T. Nagatomo;D. Natori;Y. Sato;S. Sato;and A. Kitagawa
测量了57mn （T1/2= 1.45 min）在18k下注入ch4基体和ch4 - Ar混合基体后57fe的束内Mössbauer光谱。在ch4基体中得到的光谱分析很好，有一个双峰和一个单峰。根据密度泛函理论计算和Mössbauer参数，这些组分被分配到Fe（CH4）的两个结构异构体上。在低浓度ch4与Ar基体的情况下，我们观察到激发态原子构型中的Fe+(3d74s)和基态中的Fe+(3d64s1)，这与我们之前在Ar和Xe基体中植入实验中观察到的情况相同。Fe（CH4）的生成产率是根据Fe+离子周围第一近邻CH4分子的数目来讨论的。
In-beam Mössbauer spectra of57Fe after57Mn (T1/2= 1.45 min) implantation into a CH4matrix and mixture matrices of CH4and Ar at 18 K were measured. The spectrum obtained in the CH4matrix was analyzed well with a doublet and a singlet peaks. These components were assigned to two constitutional isomers of Fe(CH4)as derived from density functional theory calculations and the Mössbauer parameters. In the case of the low concentration of CH4with an Ar matrix, the Fe+(3d74s) in the excited state atomic configuration and Fe+(3d64s1) in the ground state were observed, as observed in our previous implantation experiment into Ar and Xe matrices. The formation yields of Fe(CH4)are discussed in term of the number of first-nearest-neighbor CH4molecules around an Fe+ion.