Electron Affinities of Fluoro- and Chlorobenzenes

TABLE 11.7 Kinetic and Thermodynamic Properties of Dissociative Electron Attachment 

The electron affinities of the three mono-chloroanthracenes measured by TCT and ECD agree within the uncertainties. The Ea of bromoanthracene and bromopyr-ene measured by the collisional ionization techniques could be for excited states based on CURES-EC and the substitution effects. The Ea of 9-bromoanthracene, 0.62 eV, is lower than that of anthracene and lower than the CURES-EC value of 0.95 eV. The evaluated value for 9-chloroanthracene is 0.86 eV. The value for the bromocompound should be higher. The Ea for bromopyrene, 0.75 eV, is larger than that for pyrene but is still lower than the CURES-EC value of 1.1 eV. Many of the 

TABLE 11.8 Bond Dissociation Energies (in eV) from ECD Data 

TABLE 11.9 Electron Affinities (in eV) of Chlorobenzenes from Reduction Potentials, ECD, and CURES-EC [22 and this work] 

TCT values could exist for excited states. Based on this analysis, the AEa should be larger, as indicated in the appendices [41, 42]. 

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