000 02420cam a2200349 a 4500
003 EG-GiCUC
005 20250223031233.0
008 150530s2014 ua dh f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aM.Sc
099 _aCai01.12.11.M.Sc.2014.Ma.E
100 0 _aMahmoud Ahmed Elsayed Noamaan
245 1 0 _aExperimental and theoretical studies on the electronic spectra and properties of some heterocyclic azides /
_cMahmoud Ahmed Elsayed Noamaan ; Supervised R. H. Abu Eittah , Sabry Eltaher Ahmed , Walid Mohamed Ibrahim Hassan
246 1 5 _aدراسات تجريبية ونظرية للخواص والأطياف الإلكترونية لبعض مركبات الأزايد غير متجانسة الحلقة
260 _aCairo :
_bMahmoud Ahmed Elsayed Noamaan ,
_c2014
300 _a136 P. :
_bcharts , facsimiles ;
_c25cm
502 _aThesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physical Chemistry
520 _aThe electronic absorption spectra of 2-azido-1,3-benzothiazoles are measured in different solvents and the substituent effects are discussed. The TD-DFT using B3LYP/6-311+G(d,p) method is applied to theoretically predict the electronic transitions of the studied azides and the results were satisfactory. the spectra of the studied compounds have not been reported before; assignments of the observed bands were based on the results of theoretical calculation and not by relative to the comparing the hydrocarbon. The electron correlation energy corrections were introduced by carrying out single-point calculation at the MP2 and CCSD(T) using different basis set. The solvent effect studied by SCRF theory using the polarizable continuum model showed that the relative stability of the tetrazole species over the azide can be maximized vastly by increasing the the position of the azide-tetrazole equilibrium has been discussed.
530 _aIssued also as CD
653 4 _aAzide-tetrazole isomerization
653 4 _aAzidobenzothiazole system
653 4 _aEffect of the fused benzene ring
700 0 _aR. H. Abu Eittah ,
_eSupervisor
700 0 _aSabry Eltaher Ahmed ,
_eSupervisor
700 0 _aWalid Mohamed Ibrahim Hassan ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSoheir
_eCataloger
942 _2ddc
_cTH
999 _c51106
_d51106