聚苯胺
氧烷
氮气
化学状态
化学
材料科学
化学工程
有机化学
聚合物
光谱学
X射线光电子能谱
聚合
物理
量子力学
工程类
作者
Christoph Hennig,K.‐H. Hallmeier,R. Szargan
标识
DOI:10.1016/s0379-6779(98)80106-9
摘要
Abstract X-ray absorption and photoelectron spectra of polyaniline were investigated in order to characterize the chemical bonding of its nitrogen atoms. The identification of neutral and charged nitrogen groups is of special interest. X-ray absorption near-edge structure (XANES) at the nitrogen K edge shows characteristic resonance structures reflecting transitions from the N1s core-level into unoccupied states. For comparison N1s X-ray photoelectron spectra were recorded representing the initial state of the N1s−12p( π ∗ σ ∗ ) transitions. Due to the increasing energy differences between the N1s initial state and the unoccupied π and σ states, discrete final states, originating from the different chemical bonding at the nitrogen atom (N, NH+ and NH), were resolved in the N K XANES.
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