Investigation of Compton profiles of NO and C2H2
Ma, YP; Zhao, XL; Liu, YW; Xu, LQ; Kang, X; Ni, DD; Yan, S; Zhu, LF; Yang, K; Zhu, LF (reprint author), Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China.
2015
发表期刊ACTA PHYSICA SINICA
ISSN1000-3290
卷号64期号:15页码:
文章类型期刊文献
摘要The Compton profiles of nitric oxide and acetylene molecules have been determined at an incident photon energy of 20 keV. Compton profile measurements are carried out with the beamline BL15U1 at the Shanghai Synchrotron Radiation Facility (SSRF). A dedicated gas cell is used, in which diffuse scattering is effectively suppressed. By considering that the statistical accuracy of 0.2% at p(z) approximate to 0 is achieved, the Compton profiles of NO and C2H2 determined in this paper can serve as the experimental benchmark data. Furthermore, the density functional theory (DFT) and HF calculation for different basis sets are used to calculate the Compton profiles of nitric oxide and acetylene. It is found that the DFT calculations with the diffuse basis sets are closer to the experimental results, indicating that the electronic density distribution of nitric oxide is more diffuse. For acetylene, the HF calculation is of better agreement with the experimental result. To better understand Compton profiles, we have compared them with distributions of electron density by theoretical calculation. There are clear correspondences between them: diffuse distribution is related to the localized profile and complex structure in electron density distribution, which also shows a subtle structure in profile. The present Compton profiles of nitric oxide and acetylene molecules achieved by synchrotron radiation are the most accurate up to now, as far as we know.
关键词X-rays Scattering Density N2 Ne O2
语种英语
WOS记录号WOS:000362976600010
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/24970
专题中科院上海应用物理研究所2011-2018年
通讯作者Zhu, LF (reprint author), Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China.
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Ma, YP,Zhao, XL,Liu, YW,et al. Investigation of Compton profiles of NO and C2H2[J]. ACTA PHYSICA SINICA,2015,64(15):—.
APA Ma, YP.,Zhao, XL.,Liu, YW.,Xu, LQ.,Kang, X.,...&Zhu, LF .(2015).Investigation of Compton profiles of NO and C2H2.ACTA PHYSICA SINICA,64(15),—.
MLA Ma, YP,et al."Investigation of Compton profiles of NO and C2H2".ACTA PHYSICA SINICA 64.15(2015):—.
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