Titanium tetraazide
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| IUPACName = Titanium(IV) tetraazide
| OtherNames = Titanium tetraazide
| Section1 = {{Chembox Identifiers
| CASNo = 517874-43-0
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| PubChem = 76529634
| StdInChI = 1S/4N3.Ti/c4*1-3-2;/q4*-1;+4
| StdInChIKey = UBKFNPJMWUJHGB-UHFFFAOYSA-N
| SMILES = [N-]=[N+]=[N-].[N-]=[N+]=[N-].[N-]=[N+]=[N-].[N-]=[N+]=[N-].[Ti+4]
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| Section2 = {{Chembox Properties
| Formula = {{chem2|Ti(N3)4}}
| MolarMass = 215.95 g/mol
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Titanium tetraazide is an inorganic chemical compound with the formula {{chem2|Ti(N3)4}}. It is a highly sensitive explosive, and has been prepared from titanium tetrafluoride and trimethylsilyl azide via the corresponding fluoride-azide exchange.
Properties
Titanium tetraazide has been characterized by vibrational spectroscopy and single-crystal X-ray diffraction.{{cite journal |last1=Saal |first1=Thomas |last2=Deokar |first2=Piyush |last3=Christe |first3=Karl O. |last4=Haiges |first4=Ralf |title=The Binary Group 4 Azide Adducts [(bpy)Ti(N3)4], [(phen)Ti(N3)4], [(bpy)2Zr(N3)4]2·bpy, and [(bpy)2Hf(N3)4]2·bpy |journal=Eur. J. Inorg. Chem. |date=4 April 2019 |issue=18 |pages=2388–2391 |doi=10.1002/ejic.201900334 |url=https://chemistry-europe.onlinelibrary.wiley.com/doi/abs/10.1002/ejic.201900334 |access-date=5 January 2025}} The compound was predicted in 2003 to be vibrationally stable, and was expected to have a tetrahedral structures containing linear bond angles, contrasting other metal azides which generally feature bent bond angles. After synthesis in 2004, the resulting titanium tetraazide did not exhibit linear bond angles, as the coordination numbers exceeded 4.{{cite web |last1=Haiges |first1=Ralf |last2=Boatz |first2=Jerry A. |last3=Schneider |first3=Stefan |last4=Schroer |first4=Thorsten |last5=Yousufuddin |first5=Muhammed |last6=Christe |first6=Karl O. |title=Preparation and Characterization of the First Binary Titanium Azides, Ti(N3 )4 , [P(C6H5 )4 ][Ti(N3 )5 ] and [P(C6H5 )4 ]2 [Ti(N3 )6 ] and on Linear Ti-N-NN Coordination |url=https://apps.dtic.mil/sti/tr/pdf/ADA422680.pdf |publisher=Defense Technical Information Center |access-date=5 January 2025 |date=12 March 2004}}