Table 1: Molecular ab initio properties used in the calculations.
Quantity Reference

X $^{1}\Sigma_{g}^{+}$ adiabatic potential Wolniewicz (1993)

B $^{1}\Sigma_{u}^{+}$ adiabatic potential Staszewska & Wolniewicz (2002)

B' $^{1}\Sigma_{u}^{+}$ adiabatic potential Staszewska & Wolniewicz (2002)

C $^1 \Pi _u$ adiabatic potential Wolniewicz & Staszewska (2003b)

D $^1 \Pi _u$ adiabatic potential Wolniewicz & Staszewska (2003b)

Off-diagonal rotational and radial matrix elements Wolniewicz & Dressler (1988)

B-X transition moment Wolniewicz & Staszewska (2003a)

B'-X transition moment Wolniewicz & Staszewska (2003a)

**Table 1:** Molecular ab initio properties used in the calculations.
Quantity	Reference
X $^{1}\Sigma_{g}^{+}$ adiabatic potential	Wolniewicz (1993)
B $^{1}\Sigma_{u}^{+}$ adiabatic potential	Staszewska & Wolniewicz (2002)
B' $^{1}\Sigma_{u}^{+}$ adiabatic potential	Staszewska & Wolniewicz (2002)
C $^1 \Pi _u$ adiabatic potential	Wolniewicz & Staszewska (2003b)
D $^1 \Pi _u$ adiabatic potential	Wolniewicz & Staszewska (2003b)
Off-diagonal rotational and radial matrix elements	Wolniewicz & Dressler (1988)
B-X transition moment	Wolniewicz & Staszewska (2003a)
B'-X transition moment	Wolniewicz & Staszewska (2003a)