[en] The Moessbauer transitions excited in neutron radiative capture reactions, i.e. in the reactions (eta, γ) and (eta, γ; β), which can be used for the Moessbauer spectroscopy, are considered. Nuclides satisfying the following conditions are selected: the transition energy does not esceed 150 keV; the life time of the level into which the transition takes place is not less than 10⁷ years; the life time of the parent nucleus, i.e. nucleus irradiated by neutrons is not less than 10⁷ years. The data on the level structure are mainly taken from Nuclear Data Sheets compilations. The work is devided into three parts: 1)transitions, excited in the (eta, γ) reactions; 2)transitions, excited in the (eta, γ) reactions followed by the β^- or β⁺ decay (one parent nucleus); 3)transitions, excited in the (eta, γ) reactions followed by the β^- and β⁺ decay (two parent nuclei)