2026-05-30T13:25:47Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/68182022-08-27T00:05:29Zcom_10259_4354com_10259_5086com_10259_2604col_10259_4355

00925njm 22002777a 4500 dc Blanco, Susana author Macario, Alberto author García Calvo, José author Revilla Cuesta, Andrea author Torroba Pérez, Tomás author López, Juan Carlos author 2020-09 The water adducts of triacetone triperoxide (TATP) have been observed by using broadband rotational spectroscopy. This work opens a new way for the gas-phase detection of this improvised explosive. The observed clusters exhibit unusual water dynamics and rarely observed multicenter interactions. TATP-H2O is formed from the D3 symmetry conformer of TATP with water lying close to the C3 axis. Water rotation around this axis with a very low barrier gives rise to the rotational spectrum of a symmetric top. The main interaction of the monohydrate is a four-center trifurcated donor Ow-H⋅⋅⋅O hydrogen bond, not observed previously in the gas phase, reinforced by a weak four-center trifurcated acceptor C−H⋅⋅⋅Ow interaction. Surprisingly, all structural signatures show the weakness of these interactions. The complex TATP-(H2O)2 is formed from the monohydrated TATP by the self-association of water. 0947-6539 http://hdl.handle.net/10259/6818 10.1002/chem.202003499 1521-3765 Energetic materials Rotational spectroscopy Triacetone triperoxide Water adducts Microwave Detection of Wet Triacetone Triperoxide (TATP): Non‐Covalent Forces and Water Dynamics