Toyama Microwave Atlas list of molecules


Molecules are sorted by their weight.
Vibrational level ν30 = 1 is expressed like 30-1 in the columns except diatomic or linear molecules and torsional excited states. Other expression may be used for internal rotation and so on. Click the name of the molecule for more information and original references.

upper quantum numbers lower quantum numbers
Molecule Molecular Weight Frequency range Number of lines Uqn1 Uqn2 Uqn3 Uqn4 Uqn5 Uqn6 Uqn7 Lqn1 Lqn2 Lqn3 Lqn4 Lqn5 Lqn6 Lqn7 symmetry
CHD(X3A") 15 581.0 - 947.1 GHz (only assigned transitions) 6 V' N' Ka' Kc' J' V" N" Ka" Kc" J"
NHD(X2A") 17 177.8 - 517.6 GHz (only assigned transitions) 139 V' N_KaKc' J' F1' F2' F' V" N_KaKc" J" F1" F2" F"
OD- 18 598.5 - 4755.1 GHz (only assigned transitions) 6 V' J' V" J"
H216O 18 550 GHz - 4.86 THz (only assigned transitions) 139 V' J' Ka' Kc' V" J" Ka" Kc"
H216O ν2 = 1 18 859 GHz - 4.67 THz (only assigned transitions) 104 V' J' Ka' Kc' V" J" Ka" Kc"
H217O 19 470 GHz - 5.31 THz (only assigned transitions) 125 V' J' Ka' Kc' V" J" Ka" Kc"
H218O 20 554 GHz - 5.24 THz (only assigned transitions) 118 V' J' Ka' Kc' V" J" Ka" Kc"
D216O 20 555 GHz - 5.14 THz (only assigned transitions) 157 V' J' Ka' Kc' V" J" Ka" Kc"
H2DO+ 20 211 - 717 GHz (only assigned transitions) 9 V' J' Ka' Kc' +/- V" J" Ka" Kc" +/-
HD2O+ 21 380 - 719 GHz (only assigned transitions) 10 V' J' Ka' Kc' +/- V" J" Ka" Kc" +/-
D3O+ 22 220 - 565 GHz (only assigned transitions) 54 J' K' +/- J" K" +/-
C2H5 29 43.6-43.8 GHz (assigned and unassigned transitions) 30 V' N' Ka' Kc' F1' F' V" N" Ka" Kc" F1" F"
CH2NH(methanimine) 29 5.3-1576.4 GHz (only assigned transitions) 389 V' J' Ka' Kc' F' V" J" Ka" Kc" F"
13CH2NH(methanimine) 30 62.5-1566.5 GHz (only assigned transitions) 146 V' J' Ka' Kc' F' V" J" Ka" Kc" F"
CH215NH(methanimine) 30 62.4-1521.0 GHz (only assigned transitions) 139 V' J' Ka' Kc' V" J" Ka" Kc"
CH2ND(methanimine) 30 30.6-1563.6 GHz (only assigned transitions) 268 V' J' Ka' Kc' F' V" J" Ka" Kc" F"
CH3OH Vt=0, 1 32 8-200 GHz (no gap) 4685 Vt' J' K' +/- Vt" J" K" +/- A/E
NF(a 1Δ) V=1 33 217.1 - 362.2 GHz (only assigned transitions) 19 V' J' F1' F' V" J" F1" F"
NF(b 1Σ1) V=0, 1 33 73.7 - 442.5 GHz (only assigned transitions) 15 V' N' F' V" N" F"
SD3+ 38 152 - 609 GHz (only assigned transitions) 10 J' K' J" K"
CD2CN(2B1) 42 190.5-285.8 GHz (only assigned transitions) 101 V' N' Ka' Kc' J' V" N" Ka" Kc" J"
HSiO(X2A') 45 192.3 - 391 GHz (only assigned transitions) 111 V' N' Ka' Kc' J' V" J" Ka" Kc" J"
NCl(a 1Δ) V=0, 1 49 161.5 - 403.8 GHz (only assigned transitions) 118 V' J' G' F' V" J" G" F"
NCl(b 1Σ1) V=0, 1 49 163.7 - 449.9 GHz (only assigned transitions) 24 V' N' F' V" N" F"
H3PO 50 69.7-348.5 GHz (only assigned transitions) 54 V' N' K' V" N" K"
CD3SH Vt=0 51 7-240 GHz (only assigned transitions) 1065 Vt' J' Ka' Kc' Vt" J" Ka" Kc" A/E
H3P18O 52 162.5-357.6 GHz (only assigned transitions) 55 V' N' K' V" N" K"
D3PO 53 175.2-350.3 GHz (only assigned transitions) 56 V' N' K' V" N" K"
c-C2H2Si 54 289.2-381.0 GHz (only assigned transitions) 93 V' J' Ka' Kc' V" J" Ka" Kc"
c-C2H229Si 55 354.8-389.9 GHz (only assigned transitions) 20 V' J' Ka' Kc' V" J" Ka" Kc"
c-C2D2Si 56 279.8-379.6 GHz (only assigned transitions) 60 V' J' Ka' Kc' V" J" Ka" Kc"
c-13C2H2Si 56 345.6-396.2 GHz (only assigned transitions) 30 V' J' Ka' Kc' V" J" Ka" Kc"
NH2CH2CN(aminoacetonitrile) ground state 56 9.1-1128.3 GHz (only assigned transitions) 679 V' J' Ka' Kc' V" J" Ka" Kc"
NH2CH2CN(aminoacetonitrile) ν18 = 1 56 80-407 GHz (only assigned transitions) 575 V' J' Ka' Kc' I' F' V" J" Ka" Kc" I" F"
NH2CH2CN(aminoacetonitrile)ν11 = 1 56 80-445 GHz (only assigned transitions) 745 V' J' Ka' Kc' I' F' V" J" Ka" Kc" I" F"
NH2CH2CN(aminoacetonitrile)ν17 = 1 56 83-448 GHz (only assigned transitions) 532 V' J' Ka' Kc' I' F' V" J" Ka" Kc" I" F"
NHDCH2CN(aminoacetonitrile) 57 8.8-498.6 GHz (only assigned transitions) 540 V' J' Ka' Kc' V" J" Ka" Kc"
CH2CP(2B1) 57 301.8-380.9 GHz (only assigned transitions) 112 V' N' Ka' Kc' J' V" N" Ka" Kc" J"
ND2CH2CN(aminoacetonitrile) 58 25.1-502.4 GHz (only assigned transitions) 535 V' J' Ka' Kc' V" J" Ka" Kc"
HCOOCH3 Vt=0, 1, 2 60 2-509 GHz (only assigned transitions) 3862(Vt=0, 1), 1855(Vt=2) Vt' J' Ka' Kc' Vt" J" Ka" Kc" A/E
CH3CH2OCH3 ground state 60 9-337.1 GHz (only assigned transitions) 3469 Vt' J' Ka' Kc' Vt" J" Ka" Kc" A/E
CH3CH2OCH3 ν30 = 1 60 20.5-304.2 GHz (only assigned transitions) 2088 Vt' J' Ka' Kc' Vt" J" Ka" Kc" A/E
CH3CH2OCH3 ν29 = 1 60 27.7-328.0 GHz (only assigned transitions) 2248 Vt' J' Ka' Kc' Vt" J" Ka" Kc" AA/AE/EA/EE(EE1, EE2)
CH3CH2OCH3 ν28 = 1 60 20.5-328.0 GHz (only assigned transitions) 1427 Vt' J' Ka' Kc' Vt" J" Ka" Kc" AA/AE/EA/EE(EE1, EE2)
HCOO13CH3 Vt=2 61 51-321 GHz (only assigned transitions) 953(Vt=2) Vt' J' Ka' Kc' Vt" J" Ka" Kc" A/E
PNO 61 24 - 397 GHz (only assigned transitions) 111 V' J' V" J" l
P15NO 62 61 - 395 GHz (only assigned transitions) 24 V' J' V" J" l
C5D(X2Π) 62 11.2-279.0 GHz (only assigned transitions) 58 V' J' F' Ω V" J" F" Ω
PN18O 63 69 - 395 GHz (only assigned transitions) 24 V' J' V" J" l
HC4OH 66 17-39 GHz (only assigned transitions) 18 V' J' Ka' Kc' V" J" Ka" Kc" A/E
DC4OH 67 28-40 GHz (only assigned transitions) 8 V' J' Ka' Kc' V" J" Ka" Kc" A/E
HC4OD 67 28-37 GHz (only assigned transitions) 6 V' J' Ka' Kc' V" J" Ka" Kc" A/E
Hydantoin (Imidazolidine-2,4-dione, C3H4N2O2, ground and 2 lowest vibrational excited states) 100 90-372 GHz (only assigned transitions)
17-500 GHz(including calculated values)
20392 V' N' Ka' Kc' V" N" Ka" Kc" A/E


Return to Toyama Microwave Atlas.
Kaori Kobayashi (Department of Physics, University of Toyama)
kaori-at-sci.u-toyama.ac.jp (replace -at- with @)
Last update, Mar. 22nd, 2019