Rate constants and branching fractions are reported for the reactions of NO+, Xe-2(+), O-2(+), Xe+(P-2(3/2)), and Kr+(P-2(3/2)) with toluene, ethylbenzene, and n-propylbenzene. Ions with recombination energies ranging from 9.26 eV (NO+) to 14.00 eV (Kr+) are studied at 300 K in a variable temperature-selected ion flow tube (VT-SIFT) yielding information regarding the role of electronic energy in these reactions. The reactions of NO+ and O-2(+) have been studied between 300 and 500 K in the VT-SIFT and between 500 and 1400 K in a high-temperature flowing afterglow (HTFA) apparatus to investigate the role of rovibrational energy. The effect of translational energy in these reactions has been investigated with a guided-ion beam (GIB) apparatus using a high-temperature octopole (HT8P) operating under single collision conditions. In the GIB-HT8P experiments, the center-of-mass collision energy was varied from ca. 0.1 to 7 eV for reactions of NO+ and O-2(+). and the target gas temperature was varied between 300 and 800 K. All reactions are Found to proceed near the capture rate at all temperatures studied. The reactions proceed primarily by nondissociative and dissociative charge transfer except for the reaction involving NO+, where the dissociation products observed in the HTFA experiments at high temperature are attributed to thermal decomposition of the charge-transfer product ions. Generally, electronic and vibrational energy are both very effective in promoting dissociation while translational energy is found to be less effective.