Coordination nanosheets based molecular computing for detection and differentiation of high-energy explosives TATB and FOX-7

0584949 - ÚOCHB 2025 RIV NL eng J - Journal Article
Ramlal, V. R. - Singh, A. - Das, A. - Lo, Rabindranath - Mandal, A. K.
Coordination nanosheets based molecular computing for detection and differentiation of high-energy explosives TATB and FOX-7.
Sensors and Actuators B - Chemical. Roč. 409, June (2024), č. článku 135551. E-ISSN 0925-4005
Institutional support: RVO:61388963
Keywords : coordination nanosheets * logic gate * IMP * explosive * TATB * FOX-7
Impact factor: 8.4, year: 2022
Method of publishing: Limited access
https://doi.org/10.1016/j.snb.2024.135551

Detection and differentiation of explosives is an issue of immediacy for security and environmental monitoring. At present, the most operated explosive system combines primary and secondary explosives. Although various advances are presently equipped for identifying primary explosives, the insensitive nature of secondary explosives makes their detection and differentiation challenging. Here, we report three coordination nanosheets (CNs) AM-8-Eu, AM-8-Tb, and AM-8-Zn containing three-way terpyridine ligands (AM-8) and Eu(III), Tb(III), and Zn(II) ions. These CNs act as a highly selective platform for detecting unexplored high-energy explosive 1,1-Diamino-2,2-dinitro ethylene (FOX-7) in solid and solution phases. For AM-8-Zn, calculated molecular electrostatic surface potential revealed two modes of interactions for triaminotrinitrobenzene (TATB) and FOX-7, producing two distinct spectral responses. Digital analysis of these responses revealed a complimentary implication (IMP)/not implication (NIMP) logic function. Finally, the unique feature of IMP gate is used to define all possible sixteen distinct binary Boolean operations on two logic values for “functional completeness”. The detection and differentiation of such insensitive high-energy explosives TATB and FOX-7, where Boolean logic can process information through distinct binary responses in solid and solution phases, have not been witnessed hitherto in a single chemical platform.
Permanent Link: https://hdl.handle.net/11104/0352736