Quantum chemical treatment of nitroguanidine and its mono ionic forms

2004-07-26
Türker, Burhan Lemi
Nitroguanidine and its mono ionic forms have been subjected to AM1 (UHF) type semiempirical as well as 6-31G** (UHF) type ab initio molecular orbital calculations. The stability order has been found to be anion > neutral > cation. The calculations have revealed that contrary to some other explosive chemicals, the charge development are accompanied by only moderate changes in bond lengths and bond angles in the case of nitroguanidine.
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM

Suggestions

Quantum chemical studies on EGDN and its monovalent ions
Türker, Burhan Lemi (Elsevier BV, 2005-03-17)
An explosive material, ethylene glycol dinitrate (EGDN) and its mono ionic forms have been subjected to semiempirical AM1 (UHF) and ab initio 6-31G (UHF) type quantum chemical analyses. The AM1 treatment reveals that the neutral and anionic forms are exothermic whereas the cation is endothermic. All of the systems are found to be stable (by AM1 and 6-31G methods) but the calculations indicate that plus and minus charge developments in AM1 treatment and minus charge development in 6-31G treatment cause drast...
Peripherally B and N substituted cyclacenes
Türker, Burhan Lemi; Gumus, S (Elsevier BV, 2004-10-25)
AM1 (RHF) type semiempirical quantum chemical calculations have been applied to cyclacenes whose fusion points and peri positions of one of their peripheral circuits are substituted with nitrogen and boron, respectively. The structures have been found to be stable but endothermic (except for R = 8 and 9) in nature. The nitrogen and boron (the fusion points peri positions, respectively,) substitution have been found to have stabilizing effect on the parent unsubstituted cyclacenes. Some geometrical and physi...
Cycled-fused-borazines - MNDO and AMI treatments
Türker, Burhan Lemi (Elsevier BV, 2003-11-17)
The Huckel type cycled-fused-borazines which are analogous to cyclacenes are considered for the semiempirical molecular orbital treatment at the level of MNDO and AMI type calculations. The structures having 3-10 arenoid rings (R) are considered. It has been found that they should be thermally stable and exogenic. Moreover, these properties get more and more as R increases. The systems exhibit no cryptoannulenic effect on any of the properties presently studied, showing that the peripheral circuits, unlike ...
Quantum chemical investigation of thalidomide molecule
Erkoç, Şakir; Erkoc, F (Elsevier BV, 2005-04-14)
The structural and electronic properties of the thalidomide molecule have been investigated theoretically by performing semi-empirical molecular orbital (AM1) and density functional theory calculations. The geometry of the molecule has been optimized by AM1 method and the electronic properties of the molecule have been calculated by density functional theory in its ground state.
Theoretical investigation of melatonin and its hydroxy isomers
Erkoc, A; Erkoc, F; Keskin, N (Elsevier BV, 2002-07-05)
The structural and electronic properties of melatonin and its six hydroxy isomers have been investigated theoretically by performing semi-empirical and ab initio molecular orbital theory calculations. The geometry of the systems has been optimized considering the semi-empirical molecular orbital theory at the level of AM I, and the electronic properties of the systems have been calculated by ab initio RHF including full MP2 correlation correction in their ground state. Conclusions were drawn by comparing wi...
Citation Formats
B. L. Türker, “Quantum chemical treatment of nitroguanidine and its mono ionic forms,” JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM, pp. 177–181, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62396.