[en] We synthesize ScCoO_3 perovskite and its solid solutions, ScCo_1_−_xFe_xO_3 and ScCo_1_−_xCr_xO_3, under high pressure (6 GPa) and high temperature (1570 K) conditions. We find noticeable shifts from the stoichiometric compositions, expressed as (Sc_1_−_xM_x)MO_3 with x = 0.05–0.11 and M = Co, (Co, Fe) and (Co, Cr). The crystal structure of (Sc_0_._9_5Co_0_._0_5)CoO_3 is refined using synchrotron x-ray powder diffraction data: space group Pnma (No. 62), Z = 4 and lattice parameters a = 5.26766(1) Å, b = 7.14027(2) Å and c = 4.92231(1) Å. (Sc_0_._9_5Co_0_._0_5)CoO_3 crystallizes in the GdFeO_3-type structure similar to other members of the perovskite cobaltite family, ACoO_3 (A"3"+ = Y and Pr-Lu). There is evidence that (Sc_0_._9_5Co_0_._0_5)CoO_3 has non-magnetic low-spin Co"3"+ ions at the B site and paramagnetic high-spin Co"3"+ ions at the A site. In the iron-doped samples (Sc_1_−_xM_x)MO_3 with M = (Co, Fe), Fe"3"+ ions have a strong preference to occupy the A site of such perovskites at small doping levels. (focus issue paper)