Photoactive energetic materials
US9902748B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2015 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | May 15, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC06C9/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Energetic materials that are photoactive or believed to be photoactive may include a conventional explosive (e.g. PETN, nitroglycerine) derivatized with an energetic UV-absorbing and/or VIS-absorbing chromophore such as 1,2,4,5-tetrazine or 1,3,5-triazine. Absorption of laser light having a suitably chosen wavelength may result in photodissociation, decomposition, and explosive release of energy. These materials may be used as ligands to form complexes. Coordination compounds include such complexes with counterions. Some having the formula M(L)n2+ were synthesized, wherein M is a transition metal and L is a ligand and n is 2 or 3. These may be photoactive upon exposure to a laser light beam having an appropriate wavelength of UV light, near-IR and/or visible light. Photoactive materials also include coordination compounds bearing non-energetic ligands; in this case, the counterion may be an oxidant such as perchlorate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.