Potential Energy Function and Stability of PuNn+

The theoretical study on PuNn+( n= 1, 2, 3) using density functional method (B3LYP) shows that PuN+and PuN2+can be stable and PuN3+(5Σ、7Σ、9Σ) can not be stable. Ground electronic states are X5Σ+(PuN+) and X4Σ+(PuN2+),and their Force Constants and Spectroscopic Data have been worked out.