Synthesis and structure property relationship of some azo-ester organic compounds and their hydrogen-bonded complexes /
Ahmed Mohamed Abdelfattah Refaie Sultan
Synthesis and structure property relationship of some azo-ester organic compounds and their hydrogen-bonded complexes / تشييد وعلاقة التركيب بالخواص لبعض مركبات الأْزو-استر العضوية ومتراكبات الرابطة الهيدروجينية لها Ahmed Mohamed Abdelfattah Refaie Sultan ; Supervised Abdelgawad Ali Fahmi , Magdi M. Naoum , Mohamed Ahmed Alaasar - Cairo : Ahmed Mohamed Abdelfattah Refaie Sultan , 2015 - 122 P. : charts ; 25cm
Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Organic Chemistry
Two series of new pyridine-based azo dyes were prepared. The first, namely 4-(3-pyridylazophenyl)-4-alkoxy benzoates (In), is a homologous series that bears terminal alkoxy group with a number of carbon atoms varies between 8, 10, 12, 14, and 16 carbons, respectively. The terminal substituent, X, in the second series, Ia-e, is a compact group with certain polarity that, alternatively, changes between electron donating (CH3₃O, CH₃) and electron withdrawing (Br, NO₂), together with the unsubstituted one ( i.e., X= H). The structures of the prepared compounds were confirmed via infrared spectroscopy (IR), nuclear magnetic resonance (NMR), mass spectrometry and elemental analysis. Their mesophase behavior was investigated via differential scanning calorimetry (DSC) and polarized light microscopy (PLM). All homologues of the first series, (In), were found to be mesomorphic, while all derivatives of the latter, Ia-e, were nonmesomorphic
4-(3-pyridylazophenyl)-4-alkoxy benzoates 4-substituted benzoic acids Angular 1:1 hydrogen-bonded supramolecular liquid crystalline complexes
Synthesis and structure property relationship of some azo-ester organic compounds and their hydrogen-bonded complexes / تشييد وعلاقة التركيب بالخواص لبعض مركبات الأْزو-استر العضوية ومتراكبات الرابطة الهيدروجينية لها Ahmed Mohamed Abdelfattah Refaie Sultan ; Supervised Abdelgawad Ali Fahmi , Magdi M. Naoum , Mohamed Ahmed Alaasar - Cairo : Ahmed Mohamed Abdelfattah Refaie Sultan , 2015 - 122 P. : charts ; 25cm
Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Organic Chemistry
Two series of new pyridine-based azo dyes were prepared. The first, namely 4-(3-pyridylazophenyl)-4-alkoxy benzoates (In), is a homologous series that bears terminal alkoxy group with a number of carbon atoms varies between 8, 10, 12, 14, and 16 carbons, respectively. The terminal substituent, X, in the second series, Ia-e, is a compact group with certain polarity that, alternatively, changes between electron donating (CH3₃O, CH₃) and electron withdrawing (Br, NO₂), together with the unsubstituted one ( i.e., X= H). The structures of the prepared compounds were confirmed via infrared spectroscopy (IR), nuclear magnetic resonance (NMR), mass spectrometry and elemental analysis. Their mesophase behavior was investigated via differential scanning calorimetry (DSC) and polarized light microscopy (PLM). All homologues of the first series, (In), were found to be mesomorphic, while all derivatives of the latter, Ia-e, were nonmesomorphic
4-(3-pyridylazophenyl)-4-alkoxy benzoates 4-substituted benzoic acids Angular 1:1 hydrogen-bonded supramolecular liquid crystalline complexes