X-ray photoemission study of core-electron relaxation energies and valence-band formation of the linear alkanes. II. Solid-phase measurements
X-ray photoemission study of core-electron relaxation energies and valence-band formation of the linear alkanes. II. Solid-phase measurements
复制标题
直链烷烃的核心电子弛豫能和价带形成的 X 射线光发射研究。
DOI：
10.1103/physrevb.15.2242
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发表时间：
1977
期刊：
影响因子：
--
通讯作者：
R. Caudano
中科院分区：
文献类型：
--
作者：
J. Pireaux;R. Caudano
正构烷烃的核心电子能级和价电子能级已通过 X 射线光电子能谱在固相中进行了研究。通过将校准后的 C $1s$ 核心水平结合能与之前的气相测量结果进行比较，可以估计极化或分子外弛豫能的大小约为 1.5 eV。从准一维固体中电子能级到能带结构的演化来讨论从正戊烷到聚乙烯的价带结构。通过比较气相和固相光谱，研究了分子间相互作用和晶体场对固态电子能量分布的影响。通过比较聚乙烯、石墨和金刚石的价带结构，分析了三维固体中的长程原子间相互作用。
Core and valence electronic levels of normal alkanes have been studied in the solid phase by means of x-ray photoelectron spectroscopy. By comparing the calibrated C $1s$ core-level binding energies with previous measurements in the gas phase, one estimates the magnitude of the polarization or the extra-molecular relaxation energy to be about 1.5 eV. The observed structures in the valence band from $n$-pentane to polyethylene are discussed in terms of the evolution of an electronic level to a band structure in a quasi-one-dimensional solid. Intermolecular interactions and crystal-field effect on solid-state electron energy distribution are studied by comparing gas- and solid-phase spectra. Long-range interatomic interactions in a tridimensional solid are analyzed through the comparison of the valence-band structures in polyethylene, graphite, and diamond.