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Report No.

Photoabsorption spectra of CF$$_3$$I and thermally dissociated CF$$_3$$I near the C 1s, I 3d and F 1s ionisation thresholds

Tanaka, Takahiro*; Hoshino, Masamitsu*; Kato, Hideki*; Harries, J.; Tamenori, Yusuke*; Ueda, Kiyoshi*; Tanaka, Hiroshi*

We report soft X-ray total ion yield and angular-resolved ion yield spectra of CF$$_3$$I in the C 1s, I 3d and F 1s ionisation regions, and tentatively assign the observed electronic states. Anisotropy in ion yield is observed only for the C 1s$$rightarrowsigma^*_{C-I}$$ transition, indicating that the dipole moment for this transition is parallel to the C$$_{3v}$$. The effusive source of CF$$_3$$I is heated to 800 K to produce a mixture of CF$$_3$$ and I, and the resulting spectra are compared to those recorded at room temperature to reveal the first information on the inner-shell excitation of CF$$_3$$.



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