EFFECT OF HIGH PRESSURES ON THE INFRARED AND RED ATMOSPHERIC ABSORPTION BAND SYSTEMS OF OXYGEN

摘要: Absorption intensities in the 0–0 and 1–0 bands of infrared band red systems oxygen were measured pure gas range 50 to 150 atm O2–N2, O2–A, O2–He mixtures up 3000 atm total pressure at 25 °C. The integrated absorption coefficient each is expressed as a power series ρO2 ρf, Amagat densities foreign gas, respectively. linear term AρO2 measure intrinsic (magnetic dipole) O2 molecule; it much greater than system. quadratic term, BρO22, gives induced O2–O2 pairs; B about ten times These results explain intensity anomalies which have been observed condensed oxygen. Induction effects O2–N2 O2–A pairs are smaller pairs, scarcely observable pairs. significance these discussed.