BrO   X 2Πi

Bromine Monoxide

Parameter 79Br16O   υ = 0 79Br16O   υ = 1 81Br16O   υ = 0 81Br16O   υ = 1 Ref.
Bυ [MHz] 12 824.7381(3) 12 715.651(8) 12 771.5131(4) 12 663.094(8) 81000
Dυ [kHz] 17.7536(17) 17.18(23) 17.6074(20) 16.95(27)
aυeff [MHz] 504.419(14) 495.77(9) 543.764(16) 534.73(8)
ζυ [MHz] 650.045(32) 654.02(24) 543.080(40) 546.30(26)
qeff/(2-λ) [kHz] -0.491(21)   -0.433(29)  
beff/(2-λ) [kHz] 139.0(8)   148.629)  
eQq2 /(2-λ) [kHz] 390.7(41)   331.7(47)  
ν0 [cm-1]   723.415 13(14)   721.928 14(57) 84056

 

Equilibrium Constants for BrO in the X 2Π3/2 State

Parameter 79Br16O 81Br16O Ref.
Be [MHz] 12 879.282(4) 12  875.723(4) 81000
De [kHz] 18.08(12) 17.94(14)
αe [MHz] 109.087(8) 108.419(8)
βe [kHz] -0.57(23) -0.66(27)
ωe [cm-1] 726(10) 724(10)
ωeχe [cm-1] 4.92 4.90
µr [u] 13.299 4293 13.355 000  
re [10-10 m] 1.717 696(1) 1.717 694(1) a

a Recalculated as re = [505379.006(51) / µrY01]1/2 with units as given in table.

NIST Physical Measurement Laboratory National Institute of Standards and Technology NIST Physical Measurement Laboratory Back to the diatomic molecule selection page