In database:

0-7000 cm-1

64-195 nm

Hydrogen cyanide (HCN)
Molecular weight 27.03 amu
Freezing point -13.5 C
Boiling point 25.6 C
Dipole moment 2.98 D
HITRAN number: 23

Infrared cross-sections from PNNL
FTIR infrared cross-sections from 550 to 7000 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


Line list from HITRAN 2008
Data from 0 to 3424 cm^-1
Images of HITRAN data on a log scale

Line list from HITRAN
Data from 0 to 3422 cm^-1.
Images of HITRAN data in cm/molecule vs. wavenumbers

UV cross-sections
From Dave Crisp
Image of data from 64 to 195 nm.

Additional References
The Bending Vibrational Ladder of H¹³C¹⁵N by Hot Gas Emission Spectroscopy; W. Quapp, V. Melnikov, and G.C. Mellau; J.Mol.Spec. 211:189-197 (2002).
Figure 1 showing data from 550 to 850 cm^-1

Photoacoustic Detection of New Bands of HCN between 11390 and 13020 cm^-1; M. Lecoutre, F. Rohart, T.R. Huet, and A.G. Maki; J.Mol.Spec 203:158-164 (2000).
Figure 1 showing data from 11390 to 11560 cm^-1

High-Temperature Infrared Measurements in the Region of the Bending Fundamental of H¹²C¹⁴N, H¹²C¹⁵N, and H¹³C¹⁴N; A.G. Maki et al.; J.Mol.Spec. 202:67-82 (2000)

Infrared Transitions of H¹²C¹⁴N and H¹²C¹⁵N between 500 and 10000 cm^-1; A. Maki, W. Quapp, S. Klee, G.C. Mellau, and S. Albert; J.Mol.Spec. 180:323-336 (1996).

Intensities of Hot-Band Transitions: HCN Hot Bands; A. Maki, W. Quapp, and S. Klee; J.Mol.Spec. 171:420-434 (1995).

Notes
Fundamental frequencies from NIST Chemistry Webbook
n₁ 3311 cm^-1 (s⁺) CH stretch
n₂ 712 cm^-1 (p) bend
n₃ 2097 cm^-1 (s⁺) CN stretch

List of available data for all molecules in database
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