[en] Complete text of publication follows. Recently, a strong movement of the single particle states in neutron rich O and C isotopes has been revealed, which resulted in N=14,16 subshell closures in the oxygen isotopes. As a consequence, a close lying doublet of neutron s_1/2 and d_5/2 states is expected along the whole C isotopic chain. In order to reveal this possibility, we studied the structure of the neutron-rich nuclei ^17,19C using fragmentation reactions of radioactive beams. Based on particle-γ and particle-γγ coincidence data, level schemes were constructed for the studied nuclei. The γ-ray spectrum of the odd nucleus ¹⁷C exhibits two transitions (see figure 1). The relative intensity is the same in the γ-ray spectra of ¹⁷C obtained from the low and high γ-ray multiplicity events. This indicates that the two transitions correspond to the decay of two excited states at 207 and 329 keV directly to the ground state. The ¹⁷C ground state has a 3/2⁺ spin value. From the ¹⁷C(p,p') study a tentative spin 1/2⁺ was assigned to the lower energy excited state and a spin 5/2⁺ to the higher energy one. The proposed level scheme, shown in figure 2, is in a reasonable agreement with shell model calculations. For ¹⁹C a 1/2⁺ configuration have been proposed for the ground state. As the 201-keV γ-transition is observed in our work as a prompt radiation, it should connect states separated by small spin differences such as 3/2⁺ → 1/2⁺. Shell-model calculations predict the existence of three low-lying states with spins 1/2⁺, 3/2⁺, and 5/2⁺ within a few hundred keV (see figure 2). In the Riken (p,p') experiment the 5/2⁺ has been found 72 keV above the 3/2⁺ one. Thus, both in ¹⁷C and ¹⁹C the 1/2⁺ and 5/2⁺ states are a few hundred keV away