Author/Authors :
Rosa، نويسنده , , A. and Barszczewska، نويسنده , , W. and Nandi، نويسنده , , D. and Ashok، نويسنده , , V. and Kumar، نويسنده , , S.V.K. and Krishnakumar، نويسنده , , E. and Brüning، نويسنده , , F. and Illenberger، نويسنده , , E.، نويسنده ,
Abstract :
Electron attachment to 1,4-chlorobromobenzene yields the ionic fragments Cl− and Br− appearing in the energy range ≈0–1 eV with Br− by about a factor of 70 more intense at room temperature. Increasing the temperature of the target molecule up to 540 K results in an unexpected temperature dependence of the cross-section in that it first increases and after passing a maximum (400 K for Br− and 460 K for Cl−) decreases. This behaviour is qualitatively interpreted by the temperature dependent population of the relevant normal modes containing the C–Cl and C–Br stretch vibration.
