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Determination of the screening parameter for 1s electrons in a bound atom by the ratio of the intensities of coherent and incoherent scattering of X‐rays
X-Ray Spectrometry ( IF 1.2 ) Pub Date : 2021-01-14 , DOI: 10.1002/xrs.3219
Igor F. Mikhailov 1 , Sergey V. Surovitskiy 1 , Anton I. Mikhailov 1
Affiliation  

The screening parameter (Z‐S) of a self‐consistent field of 1s electrons was experimentally determined for Be, B, and C atoms and for atoms with the number Z ≤ 9 included in the LiF, Li2CO3, Li4B4O7, B4C, B2O3, H2O, and C2H6O compounds. The determination was made by the experimental dependence of the ratio of the intensities of Rayleigh and Compton scattering on the momentum transfer variable in the range from 0.70 to 1.67 Å−1. For single‐component materials, the experimental (Z‐S) values correspond to theoretical values for the free atoms. For the atoms bonded in the compound, the (Z‐S) value depends on the composition of the compound and characterizes the interaction between electrons. The obtained experimental (Z‐S) data were used to calculate the electronegativity of bonded atoms and the deformation of their K‐shell was determined.

中文翻译:

通过X射线相干散射和非相干散射的强度比确定束缚原子中1s电子的屏蔽参数

的筛选参数(Z-小号1的自洽场的)小号电子被通过实验确定为BE,B,和C原子,并编号为原子Ž 包括在该LiF,栗9≤ 2 CO 3,栗4 B 4 O 7,B 4 C,B 2 O 3,H 2 O和C 2 H 6 O化合物。通过实验确定瑞利和康普顿散射强度比与动量传递变量在0.70到1.67Å -1范围内的关系。对于单组分材料,实验(ZS)值对应于自由原子的理论值。对于化合物中键合的原子,(Z-S)值取决于化合物的组成并表征电子之间的相互作用。将获得的实验数据(Z‐S)用于计算键合原子的电负性,并确定其K壳的变形。
更新日期:2021-01-14
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