[en] Electron absorption spectra of Am₂(C₂O₄)₃xnH₂O (n = 0, 3,10), Am(OH)₃x4H₂O, AmOHCO₃x1.5H₂O and Am(OOCH)₃x0.2H₂O in the range of wave lengths 450-550 nm at room temperature were measured using the method of pressing in matrix from NaCl. The presence of intensive absorption bands in the spectra characteristic of f-f-transitions indicates noncentrally symmetric surrounding of americium atoms in the structures of the compounds. Americium(3) formate spectrum, in which absorption band splits into two components, possesses a significant peculiarity. It suggests the presence of crystallographically nonequivalent americium atoms in the structure of Am(OOCH)₃x0.2H₂O