Browsing by Author "Youssef, Tamer E."

Now showing 1 - 4 of 4

Citation - WoS: 1
Citation - Scopus: 1
Computational Structural Analysis for Substituted Nickel Phthalocyanines Preparation and Characterization
(Revista Chimie Srl, 2016) Youssef, Tamer E.; Baleanu, Dumitru; Al Turaif, Hamad; Aftab, Wasim; Baleanu, Dumitru; Matematik
Hay synthesis of a novel series of symmetrically substituted nickel phthalocyanine derivatives, [(heterothio)(8)NiPcs] 4(a-e) bearing N-heterocycle moieties, i.e. Pyridine, Thiazoline, Imidazole, Tetrazole rings, was reported. Their novel heterocycle-thio phthalonitrile precursors 3(a-e) were synthesized by the aromatic nucleophilic substitution reaction of 4-nitrorophthalonitrile with N-heterocycle substituted thiols 2(a-e). The structure of the compounds was analyzed by the spectroscopic analysis tools. Besides, the powerful techniques of maximal wavelet discrete wavelet transformation together with boxplot clustering pointed out new aspects of the signals which cannot be detected by the spectroscopic analysis.
Citation - WoS: 6
Citation - Scopus: 8
Spectral Analysis of Hiv Drugs for Acquired Immunodeficiency Syndrome Within Modified Non-Invasive Methods
(Chiminform Data S A, 2013) Nigmatullin, Raoul R.; Baleanu, Dumitru; Baleanu, Dumitru; Al-Zhrani, Abdulrahim A.; Alhamed, Yahia A.; Zahid, Adnan H.; Youssef, Tamer E.; Matematik
In this study a chromatographic separation of active ingredients for four drugs namely Combivir Kaletra, Valcyte and Viramune was performed on thin layer chromatography (TLC). Their spectra were analyzed for acquired immunodeficiency syndrome by using the Fourier transform infrared spectroscopy spectra combined with the new procedure of the optimal linear smoothing. Fourier transform of the second type was applied as the fitting function based on some significant set of frequencies for the smoothed signals. The obtained results show that the proposed method is efficient and easy to apply in extracting of a hidden information from signals corresponding to the four investigated drugs.
Citation - WoS: 4
Citation - Scopus: 2
Symmetrically Substituted Zinc Phthalocyanine Derivatives Bearing N-Heterocycle Moieties Synthesis and Structural Analysis Investigations
(Chiminform Data S A, 2014) Youssef, Tamer E.; Al-Turaif, Hamad; Baleanu, Dumitru
Zinc(II)phthalocyanines bearing N-heterocycle moieties units were synthesized and characterized. Their Fourier transform infrared spectroscopic data were compared in order to characterize the investigated spectra. Fuzzy C-Means clustering technique was applied to extract some new information about these data. Hay synthesis of a novel series of symmetrically substituted zinc phthalocyanine derivatives, [(heteroxy)(8)ZnPcs] 4(a-e) bearing N-heterocycle moieties, i.e. Imidazol, Thiazol, Piperazine and Tetrazol rings, was reported. Their novel heterocycle-axyphthalonitrile precursors 3(a-e) were synthesized by the aromatic nucleophilic substitution reaction of 4,5-dichlorophthalonitrile with hetero-substituted phenols 2(a-e). The structure of the compounds was revealed by the spectroscopic analysis tools, in addition some hidden similarities of the raw spectra were revealed within the Fuzzy C-Means clustering technique.
Symmetrically substituted zinc phthalocyanine derivatives bearing N-heterocycle moieties: Synthesis and structural analysis investigations
(Chiminform DATA S A, 2014) Youssef, Tamer E.; Al-Turaif, Hamad; Baleanu, Dumitru
Zinc(II)phthalocyanines bearing N-heterocycle moieties units were synthesized and characterized. Their Fourier transform infrared spectroscopic data were compared in order to characterize the investigated spectra. Fuzzy C-Means clustering technique was applied to extract some new information about these data. Hay synthesis of a novel series of symmetrically substituted zinc phthalocyanine derivatives, [(heteroxy)8ZnPcs] 4(α-e) bearing N-heterocycle moieties, i.e. Imidazol, Thiazol, Piperazine and Tetrazol rings, was reported. Their novel heterocycle-oxyphthalonitrile precursors 3(α-e) were synthesized by the aromatic nucleophilic substitution reaction of 4,5-dichlorophthalonitrile with hetero-substituted phenols 2(α-e). The structure of the compounds was revealed by the spectroscopic analysis tools, in addition some hidden similarities of the raw spectra were revealed within the Fuzzy C-Means clustering technique.