Vibrations of the ethylene molecule

Abstract

Bonner has recently recorded seven frequencies (1619, 3009, 1341, 3069, 950, 2880 and 1654) in the Raman spectrum of liquid ethylene. In the earlier work of Dickinson, Dillon and Rassetti on the Raman spectrum of ethylene gas, 1623.3, 3019.3, 1342.4, 3240, 3272 and 2880 were recorded. I have recently obtained an intense Raman spectrum of ethylene gas at a pressure of 40 atmospheres using 4358 radiation, and have measured lines at 1626, 3020, 1343, 2880 and 1656. Thus, both Bonner and I have failed to record the lines at 3240 and 3272, and these are probably spurious.