In database:

600-6500 cm-1

Cyclopropane (C₃H₆)
Molecular weight 42.08 amu
Freezing point -126.6 C
Boiling point -32.9 C

Infrared cross-sections from PNNL
FTIR infrared cross-sections from 600 to 6500 cm^-1
Data available at 5 C, 25 C, and 50 C
Spectra is composite of on the order of 10 different pressures,backfilled with nitrogen to 760 T.
Images of PNNL data in cm²/molecule vs. wavenumbers
Images of PNNL data in cm²/molecule vs. microns

Additional references
Photoelectron Spectra of Cyclopropane and Cyclopropene Compounds; P. Rademacher; Chem.Rev. 103:933-975 (2003)
Figure 2, showing the PE spectra.

Notes
Fundamental frequencies from NIST Chemistry Webbook
n₁ 3038 cm^-1 (a₁') CH₂ stretch
n₂ 1479 cm^-1 (a₁') CH₂ scissor
n₃ 1188 cm^-1 (a₁') ring stretch
n₄ 1126 cm^-1 (a₁') CH₂ twist
n₅ 1070 cm^-1 (a₂') CH₂ wag
n₆ 3103 cm^-1 (a₂) CH₂ stretch
n₇ 854 cm^-1 (a₂) CH₂ rock
n₈ 3025 cm^-1 (e') CH₂ stretch
n₉ 1438 cm^-1 (e') CH₂ scissor
n₁₀ 1029 cm^-1 (e') CH₂ wag
n₁₁ 866 cm^-1 (e') ring deform
n₁₂ 3082 cm^-1 (e) CH₂ stretch
n₁₃ 1188 cm^-1 (e) CH₂ twist
n₁₄ 739 cm^-1 (e) CH₂ rock



List of available data for all molecules in database
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