Bandlist 40 40

Absorption band list of crystalline NH3 in solid NH3 (phase I)

Title
Absorption band list of crystalline NH3 in solid NH3 (phase I)
Type
absorption
Description
FIR-MIR-NIR-VUV absorption band list of crystalline NH3 in solid NH3 (phase I) at 20 ± 10K and 90 ± 15K
Number of bands
40
Comments
Still a few weak bands to add (from Zheng and Kaiser (2007))
Position (cm-1) Width (cm-1) Peak intensity (cm-1) Relative intensity Strength Transition mode Mode type(s) Bond Specie(s) Degeneracy Resonances
80 ± 2 80 ± 2 350 ± 100 0.0073 s
νT
translation
NH3

138 ± 1 138 ± 1 10 ± 1 750 ± 100 0.0155 s
νTxy
translation
NH3

180 ± 1 180 ± 1 14 ± 1 190 ± 60 0.004 m
νTxy
translation
NH3

260 ± 2 260 ± 2 12 ± 1 340 ± 50 0.007 s
νLz
libration
NH3

362 ± 2 362 ± 2 26 ± 1 14000 ± 800 0.29 vs
νLxy (TO)
libration
NH3

366 ± 1 366 ± 1 vs
νLxy (TO)
libration
NH3

474 ± 1 474 ± 1 2000 ± 250 0.042 s
νLxyTxy ?
translation
libration
NH3

534 ± 7 534 ± 7 18 ± 1 1600 ± 200 0.033 s
νLxy (LO)
libration
NH3

581 ± 2 581 ± 2 1500 ± 200 0.031 s
unknown
unknown
NH3

1058 ± 2 1058 ± 2 12 ± 1 34200 ± 500 0.71 vvs
ν2 (TO)
Lxy ?
deformation sym.
libration
NH3
NH3
NH3



1100 ± 1 1100 ± 1 3 ± 1 150 ± 30 0.03 m
ν2
L
deformation sym.
libration
NH3
NH3
NH3



1141 ± 2 1141 ± 2 8 ± 3 50 ± 15 0.001 m
ν2L
deformation sym.
libration
NH3
NH3

1158 ± 3 1158 ± 3 13 ± 3 40 ± 10 8.0e-04 m
ν2L ?
deformation sym.
libration
NH3
NH3

1207 ± 1 1207 ± 1 23 ± 5 35 ± 10 7.0e-04 m
ν2T
deformation sym.
translation
NH3
NH3

1248 ± 1 1248 ± 1 16 ± 5 35 ± 10 7.0e-04 m
ν2Txy
deformation sym.
translation
NH3
NH3

1409 ± 2 1409 ± 2 55 ± 5 250 ± 50 0.0052 s
ν2L
deformation sym.
libration
NH3
NH3

1495 ± 5 1495 ± 5 30 ± 10 140 ± 50 0.003 m
ν4
deformation asym.
NH3
NH3
triple
1594 ± 2 1594 ± 2 620 ± 50 0.013 s
ν4
ν2Lxy (LO)
deformation asym.
deformation sym.
libration
NH3
NH3
NH3
NH3
triple


1648 ± 2 1648 ± 2 15 ± 1 1270 ± 50 0.026 s
ν4
deformation asym.
NH3
NH3
triple
1893 ± 7 1893 ± 7 70 ± 5 290 ± 20 0.006 s
ν4Lz
deformation asym.
libration
NH3
NH3

3212 ± 3 3212 ± 3 15 ± 5 200 ± 20 0.0042 s
ν1
stretching sym.
>N-H
NH3

3293 ± 3 3293 ± 3 50 ± 10 1500 ± 500 0.031 s
ν1T
4
stretching sym.
translation
deformation asym.
>N-H
NH3
NH3
NH3



3369 ± 2 3369 ± 2 8.5 ± 1 18000 ± 2000 0.375 vs
ν3
stretching asym.
>N-H
NH3
triple
3376 ± 2 3376 ± 2 8 ± 1 48000 ± 500 1 vvs
ν3 (TO)
stretching asym.
>N-H
NH3
triple
3480 ± 3 3480 ± 3 30 ± 20 6.0e-04 m
ν1Lz
stretching sym.
libration
>N-H
NH3

3535 ± 4 3535 ± 4 50 ± 6 225 ± 25 0.0047 s
ν1Lxy
stretching sym.
libration
>N-H
NH3

3720 ± 5 3720 ± 5 20 ± 5 4.0e-04 m
ν1Lxy
ν3Lxy
stretching sym.
libration
stretching asym.
libration
>N-H
>N-H
NH3
NH3



4347 ± 3 4347 ± 3 50 ± 20 80 ± 20 0.0017 m
ν12
stretching sym.
deformation sym.
>N-H
NH3
NH3

4437 ± 1 4437 ± 1 32 ± 5 400 ± 30 0.0083 s
ν23
deformation sym.
stretching asym.
NH3
>N-H
NH3

4461 ± 1 4461 ± 1 20 ± 2 1120 ± 20 0.023 s
ν23
deformation sym.
stretching asym.
NH3
>N-H
NH3

4987 ± 2 4987 ± 2 80 ± 5 425 ± 20 0.0088 s
ν34
stretching asym.
deformation asym.
>N-H
NH3
NH3

5240 ± 15 5240 ± 15 15 ± 10 3.0e-04 w
ν34L
stretching asym.
deformation asym.
libration
>N-H
NH3
NH3

6110 ± 10 6110 ± 10 20 ± 10 4.0e-04 w
ν234
deformation sym.
stretching asym.
deformation asym.
NH3
>N-H
NH3
NH3

6480 ± 5 6480 ± 5 23 ± 10 5.0e-04 m
1
3
stretching sym.
stretching asym.
>N-H
>N-H
NH3
NH3



6584 ± 5 6584 ± 5 25 ± 10 5.0e-04 m
1
3
stretching sym.
stretching asym.
>N-H
>N-H
NH3
NH3



6721 ± 5 6721 ± 5 18 ± 8 4.0e-04 w
1
3
stretching sym.
stretching asym.
>N-H
>N-H
NH3
NH3



8060 ± 20 8060 ± 20 20 ± 10 4.0e-04 w
14
stretching sym.
>N-H
NH3

9620 ± 20 9620 ± 20 15 ± 10 3.0e-04 w
1
stretching sym.
>N-H
NH3

51550 ± 300 51550 ± 300 500 ± 250 7500 ± 2500 0.155 vs
Ã1 A"2 ← X1 A'1
other
NH3

58800 ± 200 58800 ± 200 10000 ± 500 100000 ± 5000 2.05 vvs
Ã1 A"2 ← X1 A'1
other
NH3

Spectral range type(s)
FIR, MIR, NIR, VUV
Spectral range(s)
50 - 7000 cm-1, 50000 - 60000 cm-1
Reference position infrared
3376 cm-1

Versions

Release date
2022-05-01 20:21:43+0000 UTC
Version (Date)
#1 (2022-05-01 20:21:43+0000 UTC, Updated: 2024-12-25 15:58:21+0000 UTC)
History
Date Mode Version Status Comments
2022-05-01 19:37:22+0000 UTC first import #1 valid version
Analysis
Compilation and review of most published papers on NH3-I in the Far-IR: Reding and Hornig (1951), Anderson and Walmsley (1965), Binbrek and Anderson (1972), Ferraro et al. (1980), Sill et al. (1980), Moore_1994), Trotta and Schmitt (1995); Mid-IR and Near-IR: Reding and Hornig (1951), Wolff_1971), Binbrek and Anderson (1972), Bromberg_1977), Pipes et al. (1978), Ferraro et al. (1980), Sill et al. (1980, Holt_2004), Zheng and Kaiser (2007), Dawes et al. (2007), Giuliano et al. (2014), and analysis of data from Hudson et al. (2022) ; and VUV: Dressler and Schnepp (1960), Dawes et al. (2007)
Quality flag
4
Validation date
2022-05-01
Validators