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Citation: Zhao Yaqin, Lu Kunquan, Chang Longchun, Bai Chunli*, Cao Yong, Fu Heng, Tang Youqi. EXAFS STUDY ON ELECTRICALLY CONDUCTIVE POLYMERS (Ⅱ) FeCl₃-DOPED POLYTHIOPHENE[J]. Acta Physico-Chimica Sinica, ;1986, 2(01): 59-62. doi: 10.3866/PKU.WHXB19860109 shu

EXAFS STUDY ON ELECTRICALLY CONDUCTIVE POLYMERS (Ⅱ) FeCl₃-DOPED POLYTHIOPHENE

1.
Institute of Physics, Academia Sinica, Beijing; Institute of Chemistry, Beijing

Received Date: 13 December 1984
Available Online: 15 February 1986

Fe K absorption spectra of an electrically conductive polymer——FeCl_3-doped polythiophene and model compound [N(C_2H_5)_4][FeCl_4] were measured with a laboratory EXAFS system, which utilizes a high power rotating-anode X-ray generator (Rigaku model RU-1000) as a X-ray source. The analysis of observed EXAFS data shows that Fe atom is surrounded by four Cl atoms with Fe-Cl distance of 2.19. It is concluded that the dopant exists mainly in the form of FeCl_4~-. The result provides a direct structural information that strongly supports the proposition: the doping process is as follows
2FeCl_3+e~-→FeCl_4~-+FeCl_2
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EXAFS STUDY ON ELECTRICALLY CONDUCTIVE POLYMERS (Ⅱ) FeCl3-DOPED POLYTHIOPHENE

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EXAFS STUDY ON ELECTRICALLY CONDUCTIVE POLYMERS (Ⅱ) FeCl₃-DOPED POLYTHIOPHENE