Table 1. Natural Charges (q, |e|) on Mg and N Atoms; Wiberg Bond Indices (WBIs) for the Mg–Mg and Mg–N Bonds in 1a.
| complex | q (Mg) | q (N) | WBI (Mg–Mg) | WBI (Mg–N) |
|---|---|---|---|---|
| Mg2EP | 1.01 (1.01) | –0.80 (−0.88) | 0.647 (0.709) | 0.081 (0.067) |
The values without and within parenthesis represent the results obtained at M06-2X-D3/6-311+G(d,p) and MP2/av(D+T)z levels, respectively.