Article · Wikipedia archive · Last revised Jun 18, 2026

1,3,3-Trinitroazetidine

1,3,3-Trinitroazetidine (TNAZ) is an explosive heterocyclic compound that has been considered as a potential replacement for TNT because of its low melting point (101 °C) and good thermal stability. TNAZ was first synthesized by Archibald et al. in 1990. Several synthesis routes are known, and bulk production of several hundred kilogram batches has been demonstrated at Los Alamos National Laboratory.

Last revised
Jun 18, 2026
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Citations
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Source
1,3,3-Trinitroazetidine
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Names
Preferred IUPAC name
1,3,3-Trinitroazetidine
Other names
TNAZ
Identifiers
3D model (JSmol)
ChemSpider
UNII
  • InChI=1S/C3H4N4O6/c8-5(9)3(6(10)11)1-4(2-3)7(12)13/h1-2H2
    Key: ZCRYIJDAHIGPDQ-UHFFFAOYSA-N
  • C1C(CN1[N+](=O)[O-])([N+](=O)[O-])[N+](=O)[O-]
Properties
C3H4N4O6
Molar mass 192.087 g·mol−1
Appearance Pale yellow crystals
Density 1.86 gcm3
Melting point 1011 °C (214 °F; 374 K)
Boiling point 2521 °C (486 °F; 525 K)
Structure
Orthorhombic
Explosive data
Detonation velocity 9597 m/s2
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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1,3,3-Trinitroazetidine (TNAZ) is an explosive heterocyclic compound that has been considered as a potential replacement for TNT because of its low melting point (101 °C) and good thermal stability (up to 240 °C). TNAZ was first synthesized by Archibald et al. in 1990.3 Several synthesis routes are known, and bulk production of several hundred kilogram batches has been demonstrated at Los Alamos National Laboratory.415

Properties

The compound crystallizes in an orthorhombic lattice with the space group Pbca. Thermolysis occurs starting around 240 °C - 250 °C with decomposition products that include nitrogen dioxide, nitric oxide, nitrous acid, carbon dioxide, and formaldehyde. It has a heat of decomposition of 6343 kJ/kg, and a detonation pressure of 36.4 GPa.6

References

References

  1. Viswanath, Dabir S.; Ghosh, Tushar K.; Boddu, Veera M. (2018). "1,3,3-Trinitroazetidine (TNAZ)". Emerging Energetic Materials: Synthesis, Physicochemical, and Detonation Properties. pp. 293–307. doi:10.1007/978-94-024-1201-7_11. ISBN 978-94-024-1199-7.
  2. Simpson, R.L.; Garza, R.G.; Foltz, M.F.; Ornellas, D.L.; Utriew, P.A. (14 December 1994). Characterization of TNAZ (PDF) (Technical report). Office of Scientific and Technical Information (OSTI). doi:10.2172/71573. OSTI 71573.
  3. Archibald, T. G; Gilardi, Richard; Baum, K; George, Clifford (1990). "Synthesis and x-ray crystal structure of 1,3,3-trinitroazetidine". The Journal of Organic Chemistry. 55 (9): 2920–2924. Bibcode:1990JOrgC..55.2920A. doi:10.1021/jo00296a066.
  4. Coburn, Michael D.; Hiskey, Michael A.; Archibald, Thomas G. (January 1998). "Scale-up and waste-minimization of the Los Alamos process for 1,3,3-trinitroazetidine (TNAZ)". Waste Management. 17 (2–3): 143–146. Bibcode:1998WaMan..17..143C. doi:10.1016/S0956-053X(97)10013-7.
  5. Jalový, Zdenek; Zeman, Svatopluk; Suceska, Muhamed; Vávra, Pave; Dudek, Kamil; Rajic, Masa (1 June 2001). "1,3,3-trinitroazetidine (TNAZ). Part I. Syntheses and properties". Journal of Energetic Materials. 19 (2): 219–239. Bibcode:2001JEnM...19..219J. doi:10.1080/07370650108216127. ISSN 0737-0652. S2CID 98003295.
  6. Axenrod, Theodore; Watnick, Clara; Yazdekhasti, Hamid; Dave, Paritosh R (1993). "Synthesis of 1,3,3-trinitroazetidine". Tetrahedron Letters. 34 (42): 6677–6680. doi:10.1016/S0040-4039(00)61673-8.