The infrared spectrum of the (X) over tilde 2E(2)'' tropyl radical has been recorded in the range of the CH-stretch vibrational modes using the helium droplet isolation technique. Two bands are observed at 3053 and 3058 cm(-1). The electronic degeneracy of the ground state results in a Jahn-Teller interaction for two of the CH-stretch modes, i.e., first order interaction for E-3' symmetry modes and second-order interaction for E-2' symmetry modes. The experimentally observed bands are assigned to the E-1' and E-3' CH-stretch modes. The E-1' mode is infrared-active, whereas the E-3' mode is inactive in the absence of the Jahn-Teller interaction. The transition to the upper component of the Jahn-Teller split E-3' mode gains intensity via vibronic coupling, giving rise to the second experimentally observed band.