Harmonic vibrations (cm^-1) of Cyclopentadieneoxide, 
also known as 6-Oxabicyclo[3.1.0]hex-2-ene and 3,4-Epoxycyclopentene
calculated at the B3LYP/aug-cc-pVTZ level, see Heyne et al., 2026 (in the documentation).

 30   310.7
 29   386.6
 28   513.5
 27   705.1
 26   730.5
 25   794.1
 24   836.0
 23   843.5
 22   915.8
 21   927.3
 20   961.9
 19   970.1
 18  1016.7
 17  1033.7
 16  1110.4
 15  1133.1
 14  1189.6
 13  1247.2
 12  1302.0
 11  1309.0
 10  1376.2
  9  1402.4
  8  1461.0
  7  1650.6
  6  3023.7
  5  3055.0
  4  3148.1
  3  3165.5
  2  3183.0
  1  3210.0