BiI Molecular Constants

BiI

Bismuth Monoiodide

Parameter	²⁰⁹Bi¹²⁷I	Ref.
Y₀₁ [MHz]	816.11943(13)	76041
Y₁₁ [MHz]	-2.09227(4)
Y₂₁ [kHz]	0.516(4)
Y₃₁ [Hz]	-2.96(13)
Y₀₂ [Hz]	-89.816(18)
Y₁₂ [Hz]	-0.106(6)
eQq₀(Bi) [MHz]	-908.4(20)	81030
eQq₀(I) [MHz]	-995.6(20)	81030
ω_e [cm^-1]	164.12	76041
ω_eχ_e [cm^-1]	0.321	76041
µ_r [u]	78.9572507
r_e [10^-10 m]	2.8005010(3) ^a

^a Recalculated as r_e = [505379.006(51) / µ_rY₀₁]^1/2 with units as given in table.

NIST Physical Measurement Laboratory