scholarly journals Interaction of TATP with Some Group II Metals - A DFT Treatment

2021 ◽  
pp. 1-16
Author(s):  
Lemi Türker
Keyword(s):  
Quantum Chemical ◽  
Spectral Properties ◽  
Density Functional ◽  
Organic Peroxide ◽  
Functional Treatment ◽  
Composite Systems ◽  
Terrorist Groups ◽  
Group Ii

Triacetonetriperoxide (TATP) is a very sensitive organic peroxide type explosive which attracts the attention of terrorist groups due to its easy synthesis. The present density functional treatment considers the interaction of TATP molecule with certain group II metals at the level of B3LYP/6-311+G(d,p). Composite systems of TATP and Be, 2Be, Mg and Ca have been considered. Although, in the case of beryllium composites TATP molecule remains intact, in its Mg and Ca composites the rupture of the ring (even in 1:1 composite) occurs. Certain structural, electronic, quantum chemical and some spectral properties of the composites have been obtained and discussed.

scholarly journals Comparison of Oxidative Powers of DADP and TATP - A DFT Treatise

2021 ◽  
pp. 67-80
Author(s):  
Lemi Türker
Keyword(s):  
Quantum Chemical ◽  
Spectral Properties ◽  
Density Functional ◽  
Organic Peroxide ◽  
Functional Treatment ◽  
Organic Component ◽  
Triacetone Triperoxide ◽  
Composite Systems ◽  
Group Ii ◽  
Diacetone Diperoxide

Diacetone diperoxide (DADP) and triacetone triperoxide (TATP) are very sensitive organic-peroxide type explosives which are easily synthesized. The present density functional treatment considers oxidative powers of DADP and TATP molecules based on comparison of their interactions with certain group II-metals at the level of B3LYP/6-311++G(d,p). Composite systems of DADP and TATP with Be, Mg and Ca have been considered. Although, in the case of beryllium composites, DADP and TATP and in the magnesium composite of DADP the organic component remains intact, Ca composites of DADP and TATP undergo ring rapture. Certain structural, electronic, quantum chemical and some spectral properties of the composites have been obtained and discussed.

scholarly journals Some Trinitroazetidine Isomers - A DFT Treatment

2021 ◽  
pp. 85-98
Author(s):  
Lemi Türker
Keyword(s):  
Density Functional Theory ◽  
Quantum Chemical ◽  
Spectral Properties ◽  
Density Functional ◽  
High Energy ◽  
Explosive Material ◽  
Functional Theory ◽  
The Impact

The present study considers some trinitroazetidine isomers within the realm of density functional theory (B3LYP/6-311++G(d,p)). One of the isomers considered is 1,3,3-trinitroazetidine (TNAZ) which is the well known insensitive high energy explosive material. Various structural, energetic, quantum chemical and spectral properties of the isomers have been harvested and discussed. Some of the isomers have nitramine bonds and some possess only C-NO2 bonds. The results indicate that the nitramine moiety somewhat destabilizes the structure electronically but increases the impact insensitivity.

scholarly journals A Composite of NTO and TNAZ-A DFT Treatment

2021 ◽  
pp. 261-274
Author(s):  
Lemi Türker
Keyword(s):  
Density Functional Theory ◽  
Quantum Chemical ◽  
Spectral Properties ◽  
Density Functional ◽  
Functional Theory ◽  
Explosive Materials

NTO and TNAZ are two important explosive materials. In the present study, 1:1 molar composite of them are investigated within the constraints of density functional theory at the level of B3LYP/6-31++G(d,p). Certain quantum chemical, physicochemical and spectral properties of the composite have been harvested and compared with the respective values of its components. The formation of composite is exothermic and favorable. The components in the composite undergo certain type of interaction to affect properties of each other.

scholarly journals Charged Forms of Diacetone Diperoxide - DFT Treatment

2021 ◽  
pp. 53-65
Author(s):  
Lemi Türker
Keyword(s):  
Density Functional Theory ◽  
Quantum Chemical ◽  
Density Functional ◽  
Organic Peroxide ◽  
Functional Theory ◽  
Diacetone Diperoxide ◽  
Ionic Forms

Diacetone diperoxide (DADP) is one of the sensitive and powerful organic peroxide explosives like its trimeric analogue TATP. Presently, some ionic forms of it have been investigated within the limitations of density functional theory at the level of UB3LYP/6-311++G(d,p). Various properties (including structural, electronic, spectral and quantum chemical) have been obtained and discussed. The studied mono and dianions having different multiplicity states have been found to be stable but monocation form decomposed.

scholarly journals Interaction of TNT with Dopamine - A DFT Treatment

2019 ◽  
pp. 175-188
Author(s):  
Lemi Türker
Keyword(s):  
Density Functional Theory ◽  
Quantum Chemical ◽  
Spectral Properties ◽  
Density Functional ◽  
High Explosive ◽  
The Other ◽  
Explosive Material ◽  
Functional Theory ◽  
Endogenous Catecholamine ◽  
Π Complex

2,4,6-trinitrotoluene, known as TNT is a widely used high explosive material. Its disastrous effects to health are reported but how it executes those effects biochemically has been scarcely studied. On the other hand, dopamine is an important endogenous catecholamine. The present study deals with interaction of TNT and dopamine within the restrictions of density functional theory at the level of B3LYP/6-31+G(d). Some structural, quantum chemical and spectral properties are obtained for TNT + dopamine composite. They may form two electronically stable π-π complex, TNT acting as π-acceptor and dopamine is the donor. Thermo chemical calculations indicate that formation of the complexes are unfavorable at the standard conditions but the endo-form of the complex is less unfavorable compared to the exo-form.

scholarly journals DFT Treatment of ANTA and Some of its Tautomers

2021 ◽  
pp. 23-36
Author(s):  
Lemi Türker
Keyword(s):  
Density Functional Theory ◽  
Quantum Chemical ◽  
Spectral Properties ◽  
Density Functional ◽  
Explosive Material ◽  
Functional Theory

An insensitive explosive material, ANTA, and some of its prototropic tautomers have been considered within the constraints of density functional theory at the levels of B3LYP/6-311++G(d,p) and B3LYP/cc-PVTZ (partly). Various energetic, quantum chemical and spectral properties have been obtained and discussed. The NICS(0) values have been obtained and contemplated on them.

scholarly journals Interaction of FOX-7 and Melatonin - A DFT Treatment

2019 ◽  
pp. 19-35
Author(s):  
Lemi Türker
Keyword(s):  
Density Functional Theory ◽  
Quantum Chemical ◽  
Composite Structures ◽  
Spectral Properties ◽  
Density Functional ◽  
Structure Optimization ◽  
Membered Ring ◽  
Aromatic Rings ◽  
Functional Theory ◽  
Type Interaction

Within the limitations of density functional theory, the π-π type interaction between melatonin (a nocturnal hormone) and FOX-7 (an insensitive explosive) is investigated. Two composite structures have been considered in which 6- and 5-membered aromatic rings of melatonin are π-π linked to FOX-7 molecule. The structure optimization has been achieved at the level of B3LYP/6-31++G(d,p). The composite formed through the 5 membered ring of melatonin is found more stable than the composite involving 6 membered ring of melatonin and both of them are more stable than the composite having no π-π type interaction. Various structural, energetic, quantum chemical and spectral properties of the composites have been reported and discussed.

scholarly journals A DFT Treatment of Some Aluminized 1,3,3-Trinitroazetidine (TNAZ) Systems - A Deeper Look

2020 ◽  
pp. 121-140
Author(s):  
Lemi Türker
Keyword(s):  
Density Functional Theory ◽  
Quantum Chemical ◽  
Density Functional ◽  
Chemical Properties ◽  
Functional Theory ◽  
Aluminum Powders ◽  
Composite Systems ◽  
Energetic Compound ◽  
Blast Effect

1,3,3-Trinitroazetedine (TNAZ) is a powerful but insensitive energetic compound having C-NO2 and N-NO2 groups attached to a four-membered backbone. Aluminum powders are often added to explosives in order to have enhanced blast effect, etc. In the present study, aluminized TNAZ system is modeled for 1-3 Al atom(s) per TNAZ molecule within the restriction of density functional theory at the levels of UB3LYP/6-311++G(d,p) and UB3LYP/cc-PVDZ. Certain structural, physical and quantum chemical properties are obtained and discussed. The considered properties are found to be highly dependent on the multiplicity (thus the number of Al atoms present) of the composite systems considered. Also, calculated IR and UV-VIS spectra of the composites have been presented.

scholarly journals Tautomerism in Fuscin - A DFT Treatment

2020 ◽  
pp. 243-259
Author(s):  
Lemi Türker
Keyword(s):  
Density Functional Theory ◽  
Natural Product ◽  
Quantum Chemical ◽  
Spectral Properties ◽  
Density Functional ◽  
Functional Theory ◽  
Valence Tautomerism ◽  
Valence Tautomer ◽  
Benzenoid Ring ◽  
Stable Structures

Fuscin, a natural product having various functionalities, may exhibit 1,3- and 1,5-proton tautomerism, as well as valence tautomerism via its 1,5-proton tautomer. All those possible forms are investigated within the realm of density functional theory with the constraints of B3LYP/6-311+G(d,p) level. NICS(0) calculation has been performed for the valence tautomer which possesses a benzenoid ring. The tautomers are found to be stable structures but the valence tautomer is the least likely one. Some QSAR, quantum chemical and spectral properties are obtained and discussed.

scholarly journals Dinitro Derivatives of 3,6,7,8-tetraazatricyclo[11,5. 11,5.12,4. 12,4]octa-1,4-diene – A DFT Treatment

2020 ◽  
pp. 151-165
Author(s):  
Lemi Türker
Keyword(s):  
Density Functional Theory ◽  
Quantum Chemical ◽  
Spectral Properties ◽  
Density Functional ◽  
Important Class ◽  
Functional Theory ◽  
Explosive Materials ◽  
Derivatives Of

Nitramines constitute an important class of explosive materials. In the present study three isomeric dinitro derivatives (nitramines) of the title structure have been investigated quantum chemically within the constraints of density functional theory at the level of B3LYP/6-311++G(d,p). Certain energies, quantum chemical and spectral properties of these three isomeric dinitro derivatives of the parent tetraazatricyclo structure have been obtained and discussed.

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