| Parameter | Value | Ref. |
|---|---|---|
| A [MHz] | 3694.2465(46) | a |
| B [MHz] | 3212.5660(30) | |
| C [MHz] | 2775.813(18) | |
| µc [C · m] µc [D] |
0.091(8) |
80034 |
a J. Phys. Chem. Ref. Data 18(3), 1245-1524 (1989).
| Vibrational State a (υ1, υ2) |
A [MHz] |
B [MHz] |
C [MHz] |
Ref. |
|---|---|---|---|---|
| (0,0) | 4090.85(1) | 2482.13(1) | 1749.49(1) | 84026 |
| (1,0) | 4083.23(13) | 2484.20(1) | 1751.09(1) | |
| (2,0) | 4075.99(9) | 2486.16(1) | 1752.58(1) | |
| (3,0) | 4068.28(12) | 2488.01(1) | 1753.97(1) | |
| (4,0) | 4062.28(12) | 2489.76(1) | 1755.25(1) | |
| (0,1) | 4094.79(10) | 2480.81(1) | 1749.00(1) | |
| Electric Dipole Moment | ||||
| (0,0) | µa [C · m] µa [D] |
0.61(1) |
||
| µb [C · m] µb [D] |
0 (assumed) |
|||
| µc [C · m] µc [D] |
0.11 (1) |
|||
a The ring bending vibration is υ1 and the ring twisting vibration is υ2.
