| In database: |
| 0-7000 cm-1 |
| 6.2-230 nm |
Ammonia (NH3)
Molecular weight 17.03 amu
Freezing point: -77 C
Boiling point: -33.5 C
Dipole moment: 1.47 D
HITRAN number: 11
Infrared cross-sections from PNNL
FTIR infrared cross-sections from 540 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 5295 cm-1
Images of HITRAN data on a log scale
Line list from HITRAN
Data from 0 to 5295 cm-1.
Images of HITRAN data in cm/molecule vs. wavenumbers
UV cross-sections
From Dave Crisp, .01-.23 microns
Image of UV data
Please see
The MPI-Mainz UV/VIS Spectral Atlas
Additional References
The 5nNH and 5nND Vibrational Bands of Partially
Deuterated Ammonia Species; H. Akagi, K. Yokoyama, A. Yokoyama, and A. Wada; J.Mol.Spec. 231:37-49 (2005).
Figures 1 and 4 showing data ranges of 11580-11890 and 15280-15610 cm-1
High-Resolution Threshold-Ionization Spectroscopy of NH3; R. Seiler, U. Hollenstein, T.P. Softley and F. Merkt;
J.Chem.Phys 118:10024-10033 (2003).
Figure 1 showing photoionization spectra from 82100 to 83200 cm-1 (~.12 microns)
Doubly Excited States of Ammonia in the Vacuum Ultraviolet Range; M. Kato, T. Odagiri, K. Kameta, N. Kouchi,
and Y. Hatano; J.Phys.B-AMO Physics, 36:3541-3554 (2003).
Figure 1 showing flourescence spectra from 250 to 530 nm.
Band Parameters and k Coefficients for Self-Broadened Ammonia in the Range 4000-11000 cm-1; P.G.J. Irwin,
S.B. Calcutt, K. Sihra, F.W. Taylor, A.L. Weir, J. Ballard, and W.B. Johnston; JQSRT 62:193-204 (1999).
Figure 3 showing data range of 4000 to 11000 cm-1
Electronic Spectra of ND3 in the Region of 64500-73500 cm-1 and Their Vibronic Assignments; X. Li and
C.R. Vidal; J.Chem.Phys. 102:9167-9173 (1995).
Notes
Fundamental frequencies from NIST Chemistry Webbook
n1 3337 cm-1 (a1) stretch
n2 950 cm-1 (a1) deformation
n3 3444 cm-1 (e) stretch
n4 1627 cm-1 (e) deformation
List of available data for all molecules in database
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