Research Article

Orientation of One-Dimensional Silicon Polymer Films Studied by X-Ray Absorption Spectroscopy

Figure 5

Sketch of the PDMS molecule in which only five silicon atoms are considered: (a) zigzag configuration, (b) helical configuration, (c) definition of the polar angle α in respect to the Si–Si σ vector, and (c) definition of the polar angle γ in respect to the Si–C plane. The structures (a) and (b) are sketched by the WinMOPAC3.9 version of the computer program.
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(a)
528256.fig.005b
(b)
528256.fig.005c
(c)
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(d)