An energetic derivative of 2,2′,4,4′,6,6′-hexanitrostilbene (HNS) and its DMF solvate crystallized from HNS solution with tertiary amine additives

ABSTRACT

An energetic derivative of 2,2′,4,4′,6,6′-hexanitrostilbene (HNS) and 2,4,7,9-tetranitro-10H-benzofuro[3,2-b]indole (TNBFI) has been synthesized from the N,N-dimethylformamide (DMF) solution of HNS with different tertiary amine additives, 4-(4-pyridyl)morpholine and 1,1-bis(morpholino) ethylene. TNBFI crystallized with DMF in a solvate, TNBFI·2DMF, was identified by negative ESI mass spectrum and single-crystal X-ray diffractions. The 3D-supermolecular structure of TNBFI·2DMF was built from the alternate stacking of TNBFI and DMF layers with π-stacking interactions between TNBFI molecules and H-bonding interactions between TNBFI and DMF molecules. The energetic properties of TNBFI molecule as well as the thermal stability of its DMF solvate have been investigated.

KEYWORDS:

• Energetic derivative
• HNS
• TNBFI
• solvate
• tertiaryamine

Acknowledgments

We thank Dr. Tao Yang at Chongqing University for the assistance during single-crystal X-ray diffraction data collections.

Supplemental data

Supplemental data for this article can be found online at here.

Additional information

Funding

This project is supported by the Presidential Foundation of CAEP (Grant No. 201501018), National Natural Science Foundation of China (Nos. 11572295 and 11704349), the Science Challenge Project of CAEP (No. TZ2018004) and Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites.