Fig. 2

FTIR spectrum in the KBr pellet of gray arsenic (red), possible oxidation product As2O3 (black), Cr(CO)6 (orange), control experiment without UV irradiation (magenta), and modified arsenic with 0.1 eq. (green) and 1.5 eq. (blue) of Cr(CO)6

FTIR spectrum in the KBr pellet of gray arsenic (red), possible oxidation product As2O3 (black), Cr(CO)6 (orange), control experiment without UV irradiation (magenta), and modified arsenic with 0.1 eq. (green) and 1.5 eq. (blue) of Cr(CO)6