[en] The amplification of the E2 and M1 electromagnetic transitions in the radiative capture reaction ⁷B(p, γ)⁸B is investigated. This amplification occurs in Coulomb dissociation experiments. Interference between the excitation amplitudes of E1, E2 and M1 multipolarities leads to anisotropy effects in the angular correlations of the fragments. Dynamical coupling which could affect the direct correspondence between the Coulomb breakup and the radiative capture cross sections are studied by means of a coupled-channels approach. (orig.)