Enhancing Conjugation Effect to Develop Nitrogen-Rich Energetic Materials with Higher Energy and Stability

Linan Zhang; Qing Lang; Mimi Zhu; Xiaopeng Zhang; Shuaijie Jiang; Ming Lu; Qiuhan Lin

doi:10.1021/acsami.3c18514

Enhancing Conjugation Effect to Develop Nitrogen-Rich Energetic Materials with Higher Energy and Stability

ACS Appl Mater Interfaces. 2024 Feb 28;16(8):10211-10217. doi: 10.1021/acsami.3c18514. Epub 2024 Feb 18.

Authors

Linan Zhang¹, Qing Lang¹, Mimi Zhu¹, Xiaopeng Zhang¹, Shuaijie Jiang¹, Ming Lu¹, Qiuhan Lin¹

Affiliation

¹ School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.

PMID: 38369818
DOI: 10.1021/acsami.3c18514

Abstract

This work reports a strategy by enhancing conjugation effect and synthesizes a symmetrical and planar compound, 1,2-bis (4,5-di(1H-tetrazol-5-yl)-2H-1,2,3-triazol-2-yl)diazene (NL24). The incorporation of azo and 1,2,3-triazole moieties manifests a synergistic effect, amplifying the conjugation effect of the azo bridge and thereby elevating the stability of NL24 (T_d: 263 °C, IS: 7 J). Notably, NL24, possessing a structural configuration comprising four tetrazoles harboring a total of 24 nitrogen atoms, exhibits excellent detonation performances (ΔH_f: 6.06 kJ g^-1, V_D: 9002 m s^-1). This strategy achieves the balance of energy and stability of polycyclic tetrazoles and provides a direction for high-performance energetic materials.

Keywords: conjugation effect; detonation performance; nitrogen-rich energetic materials; polycyclic tetrazoles; symmetric planar compound.