| Parameter | Vibrational State υ1 υ2ℓ υ3 |
79Br12C14N | 81Br12C14N | Ref. |
|---|---|---|---|---|
| Bυ [MHz] | 0 00 0 | 4120.198(9) | 4096.788(7) | 52008 |
| 0 11 0 | 4131.762(7) | 4108.264(6) | ||
| 0 20 0 | 4139.132(7) a | 4115.697(7) a | ||
| 0 22 0 | 4143.254(8)) | 4119.701(6) | ||
| 0 00 1 | 4108.807(7) a | 4085.339(7) a | ||
| 0 11 1 | 4122.67(2) b | |||
| eQq(N) [MHz] | all | -3.89 | -3.89 | 57002 |
| eQq(Br) [MHz] | 0 00 0 | 685.6(4) | 572.8(2) | |
| 0 11 0 | 682.84(21) | 570.44(17) | 52008 | |
| 0 20 0 | 681.6(7) | 568.9(15) | 57002 | |
| 0 00 1 | 687.9(6) | 576.1(9) | ||
| qυ [MHz] | 0 11 0 | 3.918 | 3.874 | 52008 |
| Dυ [kHz] | 0 00 0 | 0.8844 | 0.8716 | 56005 |
a A correction of+ 49.75 MHz and- 49.75 MHz due to Fermi resonance was applied to theJ = 6-5 transition frequencies79BrCN for the(0,00,1) and(0,20,0) states, respectively. A value of± 48.37 was employed for81BrCN .b The
J = 6-5 transition of79BrCN for the(0,11,1) state was corrected by+ 77.00 MHz to account for the Fermi resonance interaction with the(0,31,0) state.
| Isotopic Species |
Vibrational State υ1 ν2ℓ υ3 |
Bυ [MHz] | Ref. |
|---|---|---|---|
| 79Br13C14N | 0 00 0 | 4073.373(7) | 52008 |
| 79Br12C15N | 3944.846(9) | ||
| 81Br13C14N | 4049.608(7) | ||
| 81Br12C15N | 3921.787(10) |
| Parameter | 79Br12C14N | 81Br12C14N | 79Br12C15N | 81Br12C15N |
|---|---|---|---|---|
| 1.3978(30) | 1.5080(30) | 1.4004(15) | 1.5098(30) | |
| -0.0325(2) | -0.0320(3) | -0.031 65(50) | -0.02981(75) | |
| 11.8(5) | 12.7(5) | 11.37(150) | 10.47(300) | |
| -6.02(110) | -5.29(110) | -6.46(175) | -6.48(400) | |
 a2 - c2 [10-16 esu · cm2] |
-60.2(2) | -60.3(2) | -60.9(4) | -61.0(3) |
| Reference | 72011 | 72011 | 73028 | 73028 |
Additional references: [47001], [47002], [47003], [47004], [47005], [55000], [55001], [65008], and [73048].
