The Monomeric Boron Nitride Molecule

Large scale ab initio wave functions have been used to study the transition probabilities between low-lying states of the BN molecule. The square of the electronic transition dipole moment 2 iRe was computed as a function of the internuclear distance r(B-N) from which the radiative lifetimes for the low vibrational levels are calculated. Calculated electronic transition moments are presented in Fig. 4-9, p. 34, Fig. 4-10, p. 34, and Fig. 4-11, p. 35 for extensive tabulation of transition energies, spontaneous emission probabilities, and radiative lifetimes of the transition, see [7]. 

Both the vertical electron affinity (2.57 eV) and the adiabatic electron affinity (2.53 eV) for BN have also been calculated [11]. In a semiempirical treatment of diatomic molecules of the p elements, the electron affinity of BN was obtained as EA = 2.1 eV [13]. 

Low-Lying Molecular States of and Their Dissociation Limit [11]. 

---