Phosphorus-doped nitrogen clusters (NnPm): Stable high energy density materials

- Energetic properties of 50 NnPm (n + m = 4, 8, 10, 14, 16, 20) clusters were studied.
- The NnPm clusters are more stable than Nn and Pn clusters.
- The n/m ratio has determinant effect on the stability of the NnPm clusters.