Boron Ions:

Outer Shell Energy Diagram

¹S₀ to ¹P₁ transition:  136.2 nm (yikes!)

¹S₀ to ³P₂ transition:  267.68 nm

¹S₀ to ³P₁ transition:  267.80 nm (1.2 Hz linewidth)

¹S₀ to ³P₀ transition:  267.84 nm