Table 2.

Basic data

State	${\text{ω}}_{\mathrm{e}}{\text{(cm}}^{\text{-1}}\text{)}$	${\text{ω}}_{\mathrm{e}}{\text{τ}}_{\mathrm{e}}{\text{(cm}}^{\text{-1}}\text{)}$	${\text{r}}_e(\stackrel{\circ }{A})$	v max	Reference
$X^3{\Sigma }_g^{-}$	1580.3613	12.073	1.207398	12	[1]
$A^3{\Sigma }_u^{+}$	802.795	14.635	1.514	12	[2,3]
${\text{D}}^3{\text{Δ}}_u$	791	15	1.4802	6	[3,4,5]
$a^1{\text{Δ}}_g$	1509.03	12.9	1.2155	5	[1]
$b^1{\Sigma }_g^{+}$	1432.687	13.95	1.22675	3	[1]
$c^1{\Sigma }_u^{-}$	650.49	17.036	1.597	6	[4]
μA=8.0000 fo r all states

References:

^[1]Herzberg (1950).

^[2]Herzberg (1952).

^[3]See comments in text.

^[4]Herzberg (1953).

^[5]Chamberlain (1958).