Abstract
The infrared spectrum of liquid ruthenium tetroxide was determined over the range 300 to 5000 cm−1. Fundamental bands were observed at 330 and 913 cm−1, and were assigned to the infrared active ν3(F2) and ν4(F2) vibrations. A combination band [ν31](F2) at 1792 cm−1 permitted an assignment of the Raman‐active ν1(A1) frequency in agreement with earlier work. The final ν2(E) Raman‐active fundamental was calculated by the OVFF method, and the set of observed and calculated frequencies were utilized to calculate thermodynamic functions for the ideal gas from 298.16°K to 1000°K.